Medicare Program; Prospective Payment System for Hospital Outpatient Services

Federal RegisterSep 8, 1998

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SUMMARY: As required by sections 4521, 4522, and 4523 of the Balanced

Budget Act of 1997, this proposed rule would eliminate the formula-

driven overpayment for certain outpatient hospital services, extend

reductions in payment for costs of hospital outpatient services, and

establish in regulations a prospective payment system for hospital

outpatient services (and for Medicare Part B services furnished to

inpatients who have no Part A coverage). The prospective payment system

would simplify our current payment system and apply to all hospitals,

including those that are excluded from the inpatient prospective

payment system. The Balanced Budget Act provides for implementation of

the prospective payment system effective January 1, 1999, but delays

application of the system to cancer hospitals until January 1, 2000.

The hospital outpatient prospective payment system would also apply to

partial hospitalization services furnished by community mental health

centers.

Although the statutory effective date for the outpatient

prospective payment system is January 1, 1999, implementation of the

new system will have to be delayed because of year 2000 systems

concerns. The demands on intermediary bill processing systems and HCFA

internal systems to become compliant for the year 2000 preclude making

the major systems changes that are required to implement the

prospective payment system. The outpatient prospective payment system

will be implemented for all hospitals and community mental health

centers as soon as possible after January 1, 2000, and a notice of the

anticipated implementation date will be published in the Federal

Register at least 90 days in advance.

This document also proposes new requirements for provider

departments and provider-based entities. These proposed changes, as

revised based on our consideration of public comments, will be

effective 30 days after publication of a final rule.

This proposed rule would also implement section 9343(c) of the

Omnibus Budget Reconciliation Act of 1986, which prohibits Medicare

payment for nonphysician services furnished to a hospital outpatient by

a provider or supplier other than a hospital, unless the services are

furnished under an arrangement with the hospital. This section also

authorizes the Department of Health and Human Services' Office of

Inspector General to impose a civil money penalty, not to exceed

$10,000, against any individual or entity who knowingly and willfully

presents a bill for non-physician or other bundled services not

provided directly or under such an arrangement.

This proposed rule also addresses the requirements for designating

certain entities as provider-based or as a department of a hospital.

DATES: Comments will be considered if we receive them at the

appropriate address, as provided below, no later than 5 p.m. on

November 9, 1998.

ADDRESSES: Mail written comments (1 original and 3 copies) to the

following address: Health Care Financing Administration, Department of

Health and Human Services, Attention: HCFA-1005-P, P.O. Box 26688,

Baltimore, MD 21207-0488.

If you prefer, you may deliver your written comments (1 original

and 3 copies) to one of the following addresses:

Room 309-G, Hubert H. Humphrey Building, 200 Independence Avenue, SW.,

Washington, DC 20201, or

Room C5-09-26, 7500 Security Boulevard, Baltimore, MD 21244-1850.

Because of staffing and resource limitations, we cannot accept

comments by facsimile (FAX) transmission. In commenting, please refer

to file code HCFA-1005-P. Comments received timely will be available

for public inspection as they are received, generally beginning

approximately 3 weeks after publication of a document, in Room 309-G of

the Department's offices at 200 Independence Avenue, SW., Washington,

DC, on Monday through Friday of each week from 8:30 a.m. to 5 p.m.

(phone: (202) 690-7890).

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password required).

FOR FURTHER INFORMATION CONTACT:

Janet Wellham, (410) 786-4510 (for general information). Joel Schaer

(OIG), (202) 619-0089 (for information concerning civil money

penalties).

Kitty Ahern, (410) 786-4515 (for information related to the

classification of services into ambulatory payment classification (APC)

groups).

Suzanne Letsch (410) 786-4558 (for information related to volume

control measures and updates).

George Morey (410) 786-4653 (for information related to the

determination of provider-based status).

Janet Samen (410) 786-9161 (for information on the application of APCs

to community mental health centers).

SUPPLEMENTARY INFORMATION: To assist readers in referencing sections

contained in this document, we are providing the following table of

contents.

Table of Contents

I. Background

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II. Elimination of Formula-Driven Overpayment

III. Extension of Cost Reductions

IV. Prohibition Against Unbundling of Hospital Outpatient Services

A. Background

B. Previous Medicare Regulations Affecting Bundling

C. Office of Inspector General (OIG) Civil Money Penalty

Authority

D. Proposed Regulations Published August 5, 1988

1. Bundling of Hospital Outpatient Services

2. Civil Money Penalties for Unbundling Hospital Outpatient

Services

E. Revised Proposed Regulations on Bundling of Hospital Services

V. Hospital Outpatient Prospective Payment System (PPS)

A. Scope of Services Within the Outpatient PPS

1. Services Excluded from the Hospital Outpatient PPS

2. Services Included Within the Scope of the Hospital Outpatient

PPS

a. Services for Patients Who Have Exhausted Their Part A

Benefits

b. Partial Hospitalization Services

c. Services Designated by the Secretary

3. Hospital Outpatient PPS Payment Indicators

B. Description of the Ambulatory Payment Classification (APC)

Groups

1. Setting Payment Rates Based on Groups of Services Rather than

on Individual Services

2. How the Groups Were Constructed

3. Packaging Under the Groups

4. Treatment of Clinic and Emergency Visits

5. Treatment of Partial Hospitalization Services

6. Comments on Specific APCs

7. Discounting of Surgical Procedures

a. Reduced Payment for Multiple Procedures

b. Discounted Payment for Terminated Procedures

8. Inpatient Care

C. Calculation of Group Weights and Rates

1. Group Weights

2. Conversion Factor

a. Calculating Aggregate Calendar Year 1996 Medicare and

Beneficiary Payments for Hospital Outpatient Services (Current Law)

b. Sum of the Relative Weights

D. Calculation of Medicare Payment Amount and Copayment Amount

1. Introduction

2. Determination of Unadjusted Copayment Amount, Program Payment

Percentage, and Copayment Percentage

3. Calculation of Medicare Payment Amount and Beneficiary

Copayment Amount

4. Hospital Election to Offer Reduced Copayment

E. Adjustment for Area Wage Differences

1. Proposed Wage Index

2. Labor-Related Portion of Hospital Outpatient Department PPS

Payment Rates

3. Adjustment of Hospital Outpatient Department PPS Payment and

Copayment Amounts for Geographic Wage Variations

F. Claims Submission and Processing

G. Updates

1. Revisions to Weights and the Wage and Other Adjustments

2. Revisions to APC Groups

3. Annual Update to Conversion Factor

H. Outlier Payments

I. Adjustments for Specific Classes of Hospitals

J. Volume Control Measures

K. Prohibition Against Administrative or Judicial Review

VI. Hospital Outpatient Departments and Provider-Based Entities

A. Background

B. Effects on Medicare

C. Relationship of the ``Provider-Based'' Proposals to

Prospective Payment for Outpatient Hospital Services and Effective

Date of ``Provider-Based'' Proposals

D. Basis for Current Provider-Based Policy

E. Provisions of this Proposed Rule

F. Requirements for Payment

1. Prerequisites for Payment for Outpatient Hospital Services

and Supplies Incident to Physician Services

2. Prerequisites for Payment for Hospital or Critical Access

Hospital Diagnostic Services Furnished to Outpatients

3. Payment for Ambulatory Surgical Services

VII. MedPAC Recommendations

VIII. Collection of Information Requirements

IX. Response to Comments

X. Regulatory Impact Analysis

A. Introduction

B. Estimated Impact on Medicare Program

C. Objectives

D. Limitations of Our Analysis

E. Hospitals Included In and Excluded From the Prospective

Payment System

F. Quantitative Impact Analysis of the Proposed Policy Changes

Under the Prospective Payment System for Operating Costs and Capital

Costs

G. Estimated Impact of the New APC System

XI. Delay in Implementation

Regulations Text

Addenda

Addendum A--List of Proposed Hospital Outpatient Ambulatory Payment

Classes with Status Indicators, Relative Weights, Payment Rates, and

Coinsurance Amounts

Addendum B--Proposed Hospital Outpatient Department (HOPD) Payment

Status by HCPCS and Related Information

Addendum C--Proposed Hospital Outpatient Payment for Procedures by

APC

Addendum D--Summary of Medical APCs

Addendum E--Major Diagnostic Categories

Addendum F--ICD-9 Codes with Major Diagnostic Categories (MDCs) for

Payment of Medical Visits under the Hospital Outpatient PPS

Addendum G--CPT Codes Which Will Be Paid Only As Inpatient

Procedures

Addendum H--Status Indicators

Addendum I--Service Mix Indices by Hospital

Addendum J--Wage Index for Urban Areas

Addendum K--Wage Index for Rural Areas

Addendum L--Wage Index for Hospitals That Are Reclassified

In addition, because there are many terms to which we refer by

acronym in this rule, we are listing these acronyms and their

corresponding terms in alphabetical order below:

APC Ambulatory payment classification

APG Ambulatory patient group

ASC Ambulatory surgical center

BBA Balanced Budget Act of 1997

CAH Critical access hospital

CCI [HCFA's] Correct Coding Initiative

CCR Cost center specific cost-to-charge ratio

CHAMPUS Civilian Health and Medical Program of the Uniformed

Services

CMHC Community mental health center

CMP Civil money penalty

CORF Comprehensive outpatient rehabilitation facility

CPT [Physicians'] Current Procedural Terminology, 4th Edition,

1998, copyrighted by the American Medical Association

DME Durable medical equipment

DMEPOS DME, orthotics, prosthetics, prosthetic devices, prosthetic

implants and supplies

DRG Diagnosis-related group

EACH Essential access community hospital

ESRD End-stage renal disease

FDO Formula-driven overpayment

FQHC Federally qualified health center

HCPCS HCFA Common Procedure Coding System

HHA Home health agency

ICD-9-CM International Classification of Diseases, Ninth Edition,

Clinical Modification

IME Indirect medical education

IOL Intraocular lens

MDC Major diagnostic category

MDH Medicare dependent hospital

MedPAC Medicare Payment Advisory Commission

MSA Metropolitan statistical area

NECMA New England County Metropolitan Area

OBRA Omnibus Budget Reconciliation Act

PPS Prospective payment system

RHC Rural health clinic

RPCH Rural primary care hospital

RRC Rural referral center

SCH Sole community hospital

SGR Sustainable growth rate

SNF Skilled nursing facility

TEFRA Tax Equity and Fiscal Responsibility Act of 1982

I. Background

As the Medicare statute was originally enacted, Medicare payment

for hospital services (inpatient and outpatient) was based on hospital-

specific reasonable costs attributable to serving Medicare

beneficiaries. Later, the law was amended to limit payment to the

lesser of a hospital's reasonable costs or to its customary charges. In

1983, section 601 of the Social Security Amendments of 1983 (Public Law

98-21) completely revised the cost-based payment system for most

hospital inpatient services by enacting section 1886(d) of the Social

[[Page 47554]]

Security Act (the Act). This section provided for a prospective payment

system (PPS) for acute inpatient hospital stays, effective with

hospital cost reporting periods beginning on or after October 1, 1983.

Although payment for most inpatient services became subject to a

PPS, hospital outpatient services continued to be paid based on

hospital-specific costs, which provided little incentive for hospital

efficiency for outpatient services. At the same time, advances in

medical technology and changes in practice patterns were bringing about

a shift in the site of medical care from the inpatient to the

outpatient setting. During the 1980s, the Congress took steps to

control the escalating costs of providing outpatient care. The Congress

amended the statute to implement across-the-board reductions of 5.8

percent and 10 percent to the amounts otherwise payable for hospital

operating costs and capital costs, respectively, and legislated a

number of different payment methods for specific types of hospital

outpatient services. These methods included fee schedules for clinical

diagnostic laboratory tests, orthotics, prosthetics, and durable

medical equipment (DME); composite rate payment for dialysis for

persons with end-stage renal disease (ESRD); and payments based on

blends of hospital costs and the rates paid in other ambulatory

settings such as separately certified ambulatory surgical centers

(ASCs) or physician offices for certain surgery, radiology, and other

diagnostic procedures. Nevertheless, Medicare payment for services

performed in the hospital outpatient setting remains largely cost-

based.

In section 9343(f) of the Omnibus Budget Reconciliation Act of 1986

(OBRA 1986) (Public Law 99-509) and in section 4151(b)(2) of the

Omnibus Budget Reconciliation Act of 1990 (Public Law 101-508), the

Congress required the Secretary to develop a proposal to replace the

current hospital outpatient payment system with a PPS and to submit a

report to the Congress on the proposed system. In OBRA 1986, the

Congress paved the way for development of a PPS, under section 9343(g),

by requiring fiscal intermediaries to require hospitals to report

claims for services under the HCFA Common Procedure Coding System

(HCPCS), and, under section 9343(c), by extending the prohibition

against unbundling of hospital services under section 1862(a)(14) of

the Act to include outpatient services as well as inpatient services.

HCPCS coding enabled us to determine what specific procedures and

services were being billed, while the extension of the prohibition

against unbundling ensured that all nonpractitioner services provided

to hospital outpatients would be billed only by the hospital, not by an

outside supplier, and, therefore, would be reported on hospital bills

and captured in the hospital outpatient data that could be used to

develop an outpatient PPS.

Section 1866(g) of the Act, as added by section 9343(c) of OBRA

1986, and amended by section 4085(i)(17) of the Omnibus Budget

Reconciliation Act of 1987 (OBRA 1987) (Public Law 100-203), also

authorizes the Department of Health and Human Services' Office of

Inspector General to impose a civil money penalty (CMP), not to exceed

$2,000, against any individual or entity who knowingly and willfully

presents a bill in violation of an arrangement (as defined in section

1861(w)(1) of the Act).

A proposed rule to implement section 9343(c) was published in the

Federal Register on August 5, 1988. However, those regulations were

never published as a final rule, so we are including them in this

regulation and will implement them as part of the final regulation

implementing the hospital outpatient PPS.

The Secretary submitted a Report to Congress on March 17, 1995. The

report summarized the research HCFA conducted in searching for a way to

classify outpatient services for purposes of developing an outpatient

PPS. The report cited Ambulatory Patient Groups (APGs), developed by

3M-Health Information Systems under a cooperative grant with HCFA, as

the most promising classification system for grouping outpatient

services and recommended that APG-like groups be used in designing a

hospital outpatient PPS.

The report also presented a number of options that could be used,

once a PPS was in place, for addressing the issue of rapidly growing

beneficiary copayment. As a separate issue, we recommended that the

Congress amend the provisions of the law pertaining to the blended

payment methods for ASC surgery, radiology, and other diagnostic

services to correct an anomaly that resulted in a less than full

recognition of the amount paid by the beneficiary in calculating

program payment (referred to as the formula-driven overpayment).

The Balanced Budget Act of 1997 (BBA) (Public Law 105-33), enacted

on August 5, 1997, contains a number of provisions that affect Medicare

payment for hospital outpatient services. The purpose of this proposed

rule is to implement sections 4521, 4522, and 4523 of the BBA and

section 9343(c) of OBRA 1986. Section 4521 of the BBA eliminates the

formula-driven overpayment effective for services furnished on or after

October 1, 1997. Because of the October 1, 1997 effective date, HCFA

has already taken action to implement this provision. Section 4522

extends the current cost reductions of 5.8 percent and 10 percent

(applicable to hospital outpatient operating costs and hospital capital

costs, respectively) through and including December 31, 1999.

Section 4523 of the BBA amends section 1833 of the Act by adding

subsection (t), which provides for implementation of a PPS for most

hospitals for outpatient services furnished on or after January 1, 1999

and for cancer hospitals that are excluded from inpatient PPS for

services furnished on or after January 1, 2000. We note that while the

statutory effective date for the outpatient PPS is January 1, 1999,

implementation of the new payment system will have to be delayed

because of year 2000 systems concerns. The demands on intermediary bill

processing systems and HCFA internal systems to become compliant for

the year 2000 preclude making the major systems changes that are

required to implement the PPS. See Section XI of this preamble (``Delay

in Implementation'') for a more detailed explanation of the reasons for

delay. The outpatient PPS will be implemented as soon as possible after

January 1, 2000. A notice of the anticipated implementation date will

be published in the Federal Register at least 90 days in advance. The

rates that will go into effect on the implementation date will apply to

all hospitals including cancer hospitals described in section

1886(d)(1)(B)(v) of the Act. The rates will be based on the rates that

would have been in effect January 1, 1999 updated by the rate of

increase in the hospital market basket minus one percentage point.

Section 1833(t)(1)(B) of the Act authorizes the Secretary to

designate the hospital outpatient services that would be paid under the

PPS. Section 1833(t)(1)(B) also requires that the outpatient PPS

include inpatient services covered under Part B for beneficiaries who

are entitled to Part A benefits but who have exhausted their Part A

benefits or otherwise are not in a covered Part A stay. However,

section 1833(t)(1)(B) specifically excludes as covered services under

the outpatient PPS ambulance services and physical and occupational

therapy, and speech-language pathology services, for which separate fee

schedules are required by

[[Page 47555]]

statute. (See section 4531 of the BBA for amendments pertaining to

ambulance services and section 4541 for amendments pertaining to

outpatient rehabilitation services.)

Section 1833(t)(2) of the Act stipulates certain requirements for

the hospital outpatient PPS. The Secretary is required to develop a

classification system for covered outpatient services which may consist

of groups arranged so that the services within each group are

comparable clinically and with respect to the use of resources. In

addition, this section specifies data requirements for establishing

relative payment weights, which are to be based on median hospital

costs determined by data from the most recent available cost reports;

requires that the portion of the Medicare payment and the beneficiary

copayment that are attributable to labor and labor-related costs be

adjusted for geographic wage differences; and authorizes the

establishment of other adjustments, such as outlier adjustments or

adjustments for certain classes of hospitals, that are necessary to

ensure equitable payments. All adjustments are required to be made in a

budget neutral manner. This section concludes with the requirement that

a control on unnecessary increases in the volume of covered services be

established.

Section 1833(t)(3) provides for a new method of calculating

beneficiary copayment. It freezes beneficiary copayment at 20 percent

of the national median charges for covered services (or group of

covered services) furnished during 1996 and updated to 1999 using the

Secretary's estimated charge growth from 1996 to 1999. This section

specifies how beneficiary deductibles are to be treated in calculating

the Medicare payment and beneficiary copayment amounts and requires

that rules be established regarding determination of copayment amounts

for covered services that were not furnished in 1996. Further, it

prescribes the formula for calculating the initial conversion factor

used to determine Medicare payment amounts for 1999 and the method for

updating the conversion factor in subsequent years.

Sections 1833(t)(4) and (t)(5) describe the basis for determining

the Medicare payment amount and the beneficiary copayment amount for

services covered under the outpatient PPS. The latter section requires

the Secretary to establish a procedure whereby hospitals may

voluntarily elect to reduce beneficiary copayment for some or all

covered services to an amount not less than 20 percent of the Medicare

payment amount. Hospitals are further allowed to advertise any such

reductions of copayment amounts. Section 4451 of the BBA added section

1861(v)(1)(T) to the Act, which stipulates that bad debts will not be

recognized on any copayment the hospital elects to reduce.

Section 1833(t)(6) authorizes periodic review and revision of the

payment groups, relative payment weights, wage index, and conversion

factor.

Section 1833(t)(7) describes how payment is to be made for

ambulance services, which are specifically excluded from the outpatient

PPS under section 1833(t)(1)(B).

Section 1833(t)(8) provides that the Secretary may establish a

separate conversion factor for determining services furnished by cancer

hospitals excluded from inpatient PPS under this PPS.

Section 1833(t)(9) prohibits administrative or judicial review of

the PPS classification system, the groups, relative payment weights,

adjustment factors, other adjustments, calculation of base amounts,

periodic adjustments, and the establishment of a separate conversion

factor for those cancer hospitals excluded from inpatient PPS.

Section 4523(d) of the BBA amends section 1833(a)(2)(B) of the Act

to require payment under the PPS for some services described in section

1832(a)(2) that are currently paid on a cost basis and furnished by

providers of services such as comprehensive outpatient rehabilitation

facilities (CORFs), home health agencies (HHAs), hospices, and

community mental health centers (CMHCs). This amendment requires that

partial hospitalization services furnished by CMHCs beginning January

1, 1999 be paid under the PPS. As noted earlier, implementation of the

PPS will be delayed. Implementation will occur as soon as possible

after January 1, 2000.

II. Elimination of Formula-Driven Overpayment

Before enactment of section 4521 of the BBA, under the blended

payment formulas for ASC procedures, radiology, and other diagnostic

services, the ASC or physician fee schedule portion of the blends was

calculated as if the beneficiary paid 20 percent of the ASC rate or

physician fee schedule amount instead of the actual amount paid, which

was 20 percent of the hospital's billed charges. Section 4521 corrects

this anomaly by changing the blended calculations so that all amounts

paid by the beneficiary are subtracted from the total payment in

determining the amount due from the program. Effective for services

furnished on or after October 1, 1997, payment for surgery, radiology,

and other diagnostic services under blended payment methods will be

calculated by subtracting the full amount of copayment due from the

beneficiary (based on 20 percent of the hospital's billed charges).

III. Extension of Cost Reductions

Section 1861(v)(1)(S)(ii) of the Act requires that the amounts

otherwise payable for hospital outpatient operating costs and capital

costs be reduced by 5.8 percent and 10 percent, respectively. These

reductions were scheduled to sunset at the end of fiscal year 1998, but

section 4522 of the BBA extended the reductions through December 31,

1999.

IV. Prohibition Against Unbundling of Hospital Outpatient Services

A. Background

The Social Security Amendments of 1965 (Public Law 89-97), enacted

on July 30, 1965, established title XVIII of the Act, which authorized

the establishment of the Medicare program to pay part of the costs of

health care services furnished to eligible beneficiaries. Part A of the

program (Hospital Insurance) provides basic health insurance protection

against the costs of inpatient or home health care. Part B of the

program (Supplementary Medical Insurance) provides voluntary

supplementary insurance covering most physician services and certain

other items and services not covered under Part A, including hospital

outpatient services.

Before the enactment of Public Law 98-21 on April 7, 1983, which

established the Medicare PPS for inpatient hospital services,

nonphysician services furnished to Medicare beneficiaries who were

hospital patients were generally billed by the hospitals. Under certain

circumstances, however, Part B of the Medicare statute permitted

payments to be made to an outside supplier or another provider for

certain nonphysician services otherwise covered by Medicare Part B that

were furnished to a hospital patient. When payments were made under

these circumstances, some nonphysician services were billed as hospital

services in one hospital and billed by an outside supplier in another.

The practice of billing by suppliers outside the hospital for these

services has been referred to in the legislative history as the

``unbundling'' of hospital services.

Since the enactment of Public Law 98-21 and the publication of

implementing regulations on September 1, 1983 (48 FR 39752), the

Medicare program has required that nonphysician

[[Page 47556]]

services furnished to hospital inpatients be covered and paid for under

Medicare as hospital services. This practice of covering nonphysician

services furnished to hospital inpatients by an outside supplier as

hospital services is referred to as ``bundling.'' Under the PPS for

inpatient hospital services, a single predetermined payment is made for

a case based on the diagnosis-related group (DRG) to which the case is

assigned. Bundling ensures that the DRG payments to all hospitals cover

a comparable ``bundle'' of services related to the hospital stay.

Specifically, Public Law 98-21 added section 1862(a)(14) to the Act

to prohibit payment for services (other than physician services)

furnished to an inpatient of a hospital by an entity other than the

hospital, unless the services are furnished under an arrangement (as

defined in section 1861(w)(1) of the Act). (Section 1861(w)(1) of the

Act specifies that the term ``arrangements'' is limited to arrangements

under which receipt of payment by the hospital or other provider for

Medicare-covered services to an individual discharges the liability of

the individual or any other person to pay for the services.) Public Law

98-21 also added section 1866(a)(1)(H) to the Act to provide that a

hospital is eligible to participate in the Medicare program only if the

hospital agrees to furnish to inpatients either directly or under an

arrangement all Medicare-covered items and services, other than

physician services.

Regardless of whether the hospital furnishes the services directly

or arranges for furnishing the services, the hospital assumes financial

responsibility for the services. The Medicare program makes payment

only to hospitals and not to other providers or suppliers that furnish

inpatient services on behalf of the hospitals.

In Public Law 98-21, the Congress addressed only nonphysician

services furnished to Medicare beneficiaries who are hospital

inpatients. The Congress did not address at that time nonphysician

services furnished to Medicare beneficiaries who are hospital

outpatients, for which payment is made, usually on a cost basis, under

Part B of Medicare. Thus, services to hospital outpatients continued to

be unbundled in some hospitals. Subsequently, in section 9343(c) of

OBRA 1986, the Congress extended the bundling provision to all

nonphysician services furnished to hospital ``patients,'' thus also

including nonphysician services furnished to Medicare beneficiaries who

are hospital outpatients.

Sections 9343(c)(1) and (c)(2) of OBRA 1986 amended sections

1862(a)(14) and 1866(a)(1)(H) of the Act, respectively. As revised,

section 1862(a)(14) of the Act prohibits payment for nonphysician

services furnished to hospital patients (inpatients and outpatients),

unless the services are furnished by the hospital, either directly or

under an arrangement (as defined in section 1861(w)(1) of the Act). As

revised, section 1866(a)(1)(H) of the Act requires each Medicare-

participating hospital to agree to furnish directly all covered

nonphysician services required by its patients (inpatients and

outpatients) or to have the services furnished under an arrangement (as

defined in section 1861(w)(1) of the Act). Section 9338(a)(3) of OBRA

1986 affected implementation of the bundling mandate by amending

section 1861(s)(2)(K) of the Act to permit services of physician

assistants to be covered and billed separately.

Bundling of outpatient hospital services was required in order to

provide a basis for implementing another provision of OBRA 1986, which

required the development of a prospective payment methodology for

outpatient hospital services. Section 9343(f) of OBRA 1986 amended

section 1135 of the Act to require the Secretary to submit to the

Congress by April 1, 1988, an interim report concerning development of

a fully prospective payment system for ambulatory surgery. The

legislation also specified that a final report was due to the Congress

no later than April 1, 1989, with recommendations concerning

implementation of a fully prospective payment mechanism for ambulatory

surgery services by October 1, 1989. We released an interim report in

June of 1988 and the final report in September of 1990. The final

report summarized our research findings relating to hospital outpatient

prospective payment and did not contain specific recommendations

regarding a PPS for ambulatory surgical services. Later, in section

4151(b)(2) of OBRA 1990, the Congress expanded its earlier request and

required HCFA to develop a PPS that included all hospital outpatient

services. That legislation also directed us to submit a report to the

Congress concerning this proposal. We submitted a report to the

Congress on March 17, 1995.

In order for us to be able to develop a PPS for hospital outpatient

services, it was necessary to have available clear and consistent rules

about the range of services that would be included in this payment

system. Previous policies on coverage of hospital outpatient services

permitted services to be unbundled and thus allowed providers to vary

their practices concerning the furnishing of services. The Congress

recognized the inconsistencies of the current payment system and

required bundling as a first step toward payment reform.

B. Previous Medicare Regulations Affecting Bundling

Previous regulations set forth at 42 CFR 405.310(m) concerning

noncoverage of certain services furnished to hospital inpatients

(redesignated as Sec. 411.15(m)) implemented the statutory requirement

for bundling of inpatient hospital services. They excluded from

coverage nonphysician services furnished to hospital inpatients by an

entity other than the hospital, unless the services were furnished

under an arrangement. The exclusion from coverage in effect at that

time did not apply to physician services that met the conditions for

payment for physician services to provider patients in Sec. 405.550(b)

(redesignated as Sec. 415.102(a)), or services of anesthetists employed

by physicians that met the conditions for payment in Sec. 405.553(b)(4)

concerning reasonable charges for anesthesiology services furnished by

the anesthesiologist or by an anesthetist employed by the

anesthesiologist. (The regulation is now deleted as the payment

structure for anesthesiologists has changed.) The exception for

physician services is required by section 1862(a)(14) of the Act.

Services of physician-employed anesthetists were exempted from bundling

as an administrative measure to prevent disruption of long-standing

physician-anesthetist team relationships. However, in a final rule

published on May 26, 1993 (58 FR 30630), the regulations set forth at

Sec. 411.15(m) and Sec. 489.20(d) were revised to reflect the statutory

exclusion of certified registered nurse anesthetist (CRNA) services

(including services of anesthesiologist assistants), physician

assistant services, certified nurse midwife services, and qualified

psychologist services from the inpatient bundling requirement. Section

411.15(m) concerns services to hospital inpatients excluded from

coverage, and Sec. 489.20(d) concerns a provider agreement in the case

of a hospital or critical access hospital (CAH) to furnish directly or

make arrangements for Medicare-covered services to inpatients of a

hospital or a CAH.

C. Office of Inspector General (OIG) Civil Money Penalty Authority

In order to prevent the unbundling of nonphysician hospital

services, section 9343(c)(3) of OBRA 1986 amended section 1866 of the

Act by adding a new paragraph (g). Specifically, this

[[Page 47557]]

authority provided for the imposition of a civil money penalty (CMP),

not to exceed $2,000, against any person who knowingly and willfully

presents, or causes to be presented, a bill or request for payment for

a hospital outpatient service under Part B of Medicare that violates

the requirement for billing under arrangements specified in section

1866(a)(1)(H) of the Act. Section 1866(g) was further amended by

section 4085(i)(17) of OBRA 1987. Section 4085(i)(17) of OBRA 1987

deleted all references to hospital outpatient services under Part B of

Medicare and authorized imposition of a CMP when arrangements should

have been made but were not. Section 1866(g) of the Act authorizes

imposition of a CMP against any person who knowingly and willfully

presents, or causes to be presented, a bill or request for payment

inconsistent with an arrangement under section 1866(a)(1)(H) or in

violation of the requirement for an arrangement. The result of this

amendment is that the CMP is now applicable for all services furnished

to hospital patients, whether paid for under Medicare Part A or B. The

statute also requires that a CMP be imposed in the same manner as other

CMPs are imposed under section 1128A of the Act. Section 231(c) of the

Health Insurance Portability and Accountability Act of 1996 (Public Law

104-191) revised section 1128A of the Act to increase the CMP maximum

amount for each false claim or prohibited practice from $2,000 to

$10,000. Implementing regulations for this authority are set forth in

42 CFR parts 1003 and 1005.

To implement the provisions of section 9343(c) of OBRA 1986, we

published a proposed rule in the Federal Register on August 5, 1988 (53

FR 29486). Those regulations have not been published in final, but we

are proposing revised implementing regulations as part of this

regulation.

D. Proposed Regulations Published August 5, 1988

1. Bundling of Hospital Outpatient Services

We proposed to implement the requirement for bundling of outpatient

hospital services by amending then existing Medicare regulations

(Sec. 405.310 concerning particular services excluded from coverage,

and part 410 concerning supplementary medical insurance benefits) to

exclude coverage of any services that are furnished in a hospital to an

outpatient of the hospital by an entity other than the hospital during

or as a result of an encounter in the hospital, unless the services are

furnished under an arrangement. In addition, we proposed to require

bundling of those diagnostic procedures or tests (for example, magnetic

resonance imaging procedures) that are furnished outside the hospital

by an entity other than the hospital but are ordered during an

encounter in the hospital with the patient or as a result of such an

encounter.

In the proposed rule, in Sec. 405.310(n)(1) concerning definitions

of services to hospital outpatients excluded from coverage (now

redesignated as Sec. 411.15(m)), we defined a hospital outpatient as an

individual who is not an inpatient of the hospital but who is

registered as an outpatient.

We proposed to define, in Sec. 410.2 (``Definitions''), the term

``encounter'' as a direct personal contact between a patient and a

physician, or other person who is authorized by State licensure law

and, where applicable, by hospital staff bylaws, to order or furnish

services for the patient for the purpose of diagnosis or treatment of

the patient. The use of the ``encounter'' as a basis for identifying

the services to be bundled is not specifically required by OBRA 1986

but is needed in order to implement the bundling requirement in a

uniform and equitable manner, as explained further in section III. of

the preamble of the August 5, 1988 proposed rule (53 FR 29489).

As in the case of services to hospital inpatients, physician

services that meet the conditions for payment for services of

physicians to provider patients in Sec. 415.102(a) would not be bundled

under our proposal. (The exception for physician services is required

by section 1862(a)(14) of the Act.) We also proposed, as an

administrative measure, to exempt from outpatient bundling the services

of physician-employed anesthetists that meet the conditions for payment

for services furnished by an anesthesiologist or by an anesthetist

employed by the anesthesiologist in Sec. 405.553(b)(4). These services

were exempted from bundling to prevent disruption of long-standing

physician-anesthetist team relationships. We also proposed to exempt

physician assistant services as defined in section 1861(s)(2)(K)(i) of

the Act from inpatient and outpatient bundling. We proposed this change

to help accomplish the objective of section 1861(s)(2)(K)(i) of the

Act, as amended by section 9338(a)(3) of OBRA 1986, which permits

physician assistant services to be covered and to be billed separately.

As noted earlier, we have made the changes in the types of services

excluded from bundling of inpatient services in the May 1993 final rule

(58 FR 30630).

We also proposed to revise the regulations set forth at

Sec. 489.20, which describe the basic commitments included in the

provider agreement. They would require a hospital that furnishes

services to a beneficiary who is not currently an inpatient of a

hospital but who is registered by the hospital as an outpatient to

agree either to furnish directly or to make arrangements (in accordance

with section 1861(w)(1) of the Act) for all items and services for

which bundling is required under the proposed revision described above,

and for which the beneficiary is entitled to have payment made under

Medicare.

We proposed in the August 5, 1988 proposed rule that if a Medicare

outpatient is referred to another provider or supplier for further

diagnostic testing or other diagnostic services as a result of an

encounter that occurs in the hospital, the hospital would be

responsible for arranging with the other entity for the furnishing of

services. (We have now changed our view on bundling of these services

as discussed in the following section IV.E.) Also, the hospital would

be responsible for furnishing or arranging for the furnishing of

prostheses and prosthetic devices (other than dental) that replace all

or part of an internal body organ (for example, intraocular lenses

(IOLs)) and are implanted or fitted during an encounter. For example,

in the absence of a bundling provision, the physician who implants an

IOL during surgery performed on an outpatient of a hospital also could

be the supplier of the IOL and could bill Medicare under Part B for it.

As proposed in our August 1988 rule, this practice would be prohibited,

and the hospital would have to furnish the IOL, either directly or

under an arrangement (that is, would have to pay for the lens). The

same policies would apply to other items and services, such as

artificial limbs, knees, and hips; orthotics; equipment and supplies

covered under the prosthetic device benefit; and services incident to

physician services. Thus, hospitals would be required to assume

financial liability for prostheses and prosthetic devices (which are

regarded as ``services'' for Medicare coverage purposes) and for other

services furnished by an outside entity to their outpatients, and the

practice of unbundling these services would be prohibited.

Sometimes a hospital may furnish an item or service for which a

patient will have a continuing need. For example, a hospital may

furnish a DME item such as a wheelchair. When this situation occurs,

the proposed rule required that

[[Page 47558]]

the hospital would be responsible for bundling the items and services

it furnishes on-site. In adopting the view that these types of items

are subject to bundling, we did not discount the patient's continuing

need for them after leaving the hospital. However, the bundling

provisions in sections 1862(a)(14) and 1866(a)(1)(H) of the Act

prohibit unbundling of services to an individual who is a patient of a

hospital and do not provide any specific exception to these provisions

for DME. Therefore, we did not believe it would be appropriate to

exclude DME from bundling when it was furnished to a hospital patient.

(We have now changed our previous position on bundling of DME as

discussed in section IV.E.)

2. Civil Money Penalties for Unbundling Hospital Outpatient Services

In order to implement section 1866(g) of the Act, in our August 5,

1988 proposed rule, we proposed that the OIG would impose a CMP against

any person who knowingly and willfully presents, or causes to be

presented, a bill or request for payment for a hospital outpatient

service under Part B of Medicare that violates the billing arrangement

under section 1866(a)(1)(H) of the Act or the requirement for an

arrangement. The amount of the CMP was to be limited to $2,000 for each

improper bill or request, even if the bill or request included more

than one item or service. However, in accordance with the Health

Insurance Portability and Accountability Act of 1996, which increased

the minimum penalty amount to $10,000, the increased amount will now be

reflected in the regulations.

E. Revised Proposed Regulations on Bundling of Hospital Services

This proposed rule incorporates most of the provisions of the

August 5, 1988 proposed rule. The following describes how the

regulations published in this proposed rule to implement the rebundling

of outpatient hospital services differ from the regulations we proposed

and published on August 5, 1988:

We are not including any of the changes in the regulations

relating to payment for physician laboratory services (Secs. 405.555(a)

through (c), and 405.556(c) of the August 5, 1988 proposed rule),

because these regulations were deleted as a result of publication of

regulations to implement the Medicare physician fee schedule published

on November 25, 1991 (56 FR 59502).

We are revising Sec. 409.10(b), which describes services

that are not included in the definition of ``hospital inpatient or

inpatient CAH services'' to include all of the services that are now

exceptions from the bundling rule under section 1862(a)(14) of the Act.

Section 4511 of the BBA revised sections 1862(a)(14) and 1866(a)(1)(H)

of the Act to exclude services of nurse practitioners and clinical

nurse specialists described in section 1861(s)(2)(K) of the Act from

the bundling requirement.

As previously indicated, proposed Sec. 410.2 had been

revised in the earlier proposed rule to include a definition of an

``encounter.'' The definition of an encounter is expanded to include

encounters in a CAH. That section is further amended to include a

definition of an ``outpatient'' as a person who has not been admitted

as an inpatient but who is registered on the hospital or CAH records as

an outpatient and receives services (rather than supplies alone)

directly from the hospital or CAH. The revision to include CAHs in

these definitions is made to comply with sections 1862(a)(14) and

1866(a)(1)(H) of the Act, which require that CAHs be treated as

hospitals for purposes of the bundling provisions. (The BBA eliminated

rural primary care hospitals (RPCHs) and created CAHs. The Congress

intended, under section 4201(c) of the BBA, that CAHs be subject to the

same Medicare requirements to which RPCHs were subject.)

The revision to Sec. 410.27 is the same as in the earlier

proposed rule except that the revision is now designated as paragraph

(e) instead of paragraph (c).

We are removing paragraph (a)(4) of Sec. 410.28

(``Hospital or CAH diagnostic services furnished to outpatients:

Conditions'') to reflect a change made by section 4085(i)(11) of OBRA

1987 regarding provisions of diagnostic services furnished to

outpatients.

Proposed Sec. 410.30 (redesignated as Sec. 416.39 in this

proposed rule) is being significantly revised. In Sec. 410.30(a) and

(b) (now Sec. 410.39 (a) and (b) of regulations published on August 5,

1988, we proposed to require the hospital to furnish directly or under

arrangements all services furnished to its outpatients during an

encounter as well as any diagnostic services furnished outside the

hospital that were ordered during or as a result of an encounter in the

hospital. In this rule, we are not extending the bundling requirements

to include diagnostic services ordered during an encounter in the

hospital that are furnished outside the hospital. Thus, the hospital

will not be required to furnish such diagnostic services directly or

under arrangements. We are proposing a more limited approach to

bundling because the PPS we are proposing involves less ``packaging''

than we anticipated when we published the August 1988 proposed

regulations. At that time, we believed that a PPS payment for a

surgical procedure was likely to include preoperative tests and that

payment for a clinic visit was likely to include the ancillary services

(for example, laboratory tests and x-rays) that were needed to make a

diagnosis. Therefore, by requiring bundling of off-site diagnostic

tests that were ordered during an outpatient encounter at the hospital,

we believed we could ensure that: (1) We had sufficient data to set

payment rates that included the ancillary tests, and (2) once the

system was implemented, the bundling rules would prevent any

duplication of program payments. That is, a service packaged into a PPS

payment to the hospital could not also be billed to the program as an

ancillary test by an outside entity.

As noted above, the PPS we are proposing now does not include

extensive packaging; therefore, the payment for related diagnostic

tests is not included in the payments under the ambulatory payment

classification (APC) groups for surgical procedures, clinic visits,

emergency room visits, etc. Any diagnostic tests that are furnished

will result in a separate payment. The program will pay the entity that

actually furnishes the service--the hospital, if the service is

provided directly or under arrangements made by the hospital; or

another Medicare recognized entity, if the patient leaves the hospital

and obtains the service elsewhere. Because diagnostic tests are not

being packaged into another hospital service, we no longer need to

require that a hospital furnish directly or under arrangements the

services ordered during, or as a result of, an encounter, but furnished

outside the hospital. If the PPS is changed in future years to require

a more packaged approach to payment, the bundling regulations will be

revised. Proposed Sec. 410.30 (now Sec. 410.39) is also revised to

require that the bundling rules apply to CAHs, and the list of services

that are excepted from the bundling requirements, in Sec. 410.30(b)

(now Sec. 410.39(b)) (previously designated in the August 5, 1988,

proposed rule as Sec. 410.30(c)), is expanded to include all of the

services that are currently excepted under section 1862(a)(14) of the

Act.

We are revising Sec. 411.15(m) (previously designated as

Sec. 405.310(m)) significantly. We are eliminating proposed

Sec. 405.310(n). That section, which had described the hospital

[[Page 47559]]

outpatient services that were excluded from coverage if not furnished

directly or under arrangements, has been revised so that we will not

require that hospitals bundle diagnostic services ordered during or as

a result of an encounter in the hospital if furnished outside the

hospital. The requirements of that section have been incorporated into

Sec. 411.15(m)(1). We are revising Sec. 411.15(m)(2), which describes

the services that are exceptions to the bundling rule, to include all

of the services that are now exceptions under section 1862(a)(14) of

the Act. We are further revising Sec. 411.15(m)(3), ``Scope of

exclusion,'' to delete the reference to DME as a service that must be

bundled. DME is defined under section 1861(n) of the Act as equipment

used in the patient's home or in another institution used as his home

other than a hospital or skilled nursing facility (SNF). By definition,

DME is not something that is provided for use in the hospital setting.

Therefore, we do not believe that the DME benefit provides for any item

or service that is expected to be used by the patient while in the

hospital as an inpatient or outpatient. Section 1862(a)(14) of the Act

requires the hospital to provide directly or under arrangements

services furnished to the patients of a hospital or CAH. We did not

provide an exception for DME in our earlier proposed rule, because the

bundling requirements under sections 1862(a)(14) and 1866(a)(1)(H) of

the Act did not provide an exception for DME. However, we now believe

that a statutory exception is not required because the bundling

requirements apply to the services a hospital furnishes to its

patients, and DME is not a hospital service. The covered Part B benefit

for DME as described under section 1861(n) of the Act is intended for

equipment used in the home, so a hospital that furnishes DME to its

patients is not providing a hospital service to its patients, but is

acting in the capacity of a supplier of DME, not a provider of hospital

services. For these reasons, we will not require bundling of DME for

hospital patients.

Section 412.50 was not amended in the earlier proposed

rule, but we are revising it in this rule to specify that hospital

inpatient services do not include the services that are exceptions to

the bundling requirements under section 1862(a)(14) of the Act.

We are revising proposed Sec. 489.20(d) to incorporate as

exceptions to the bundling requirements all of the services that are

now exceptions under section 1866(a)(1)(H) of the Act.

In addition to minor wording changes in introductory

paragraph (b), proposed Sec. 1003.102 remains the same as in the August

5, 1988 proposed rule, with the exception that the revision is now

designated as paragraph (b)(14) rather than as paragraph (b)(4), as

originally indicated in the August 5, 1988 proposed rule. Paragraphs

(b)(11) through (b)(13) of Sec. 1003.102 are being reserved. We are

also amending Sec. 1003.103(a) to indicate, in accordance with section

231(c) of the Health Insurance Portability and Accountability Act, that

the maximum CMP for each improper bill or request has been increased to

$10,000.

We are also amending Sec. 1003.105 (Exclusion from

participation in Medicare and State health care programs) by revising

paragraph (a)(1)(i) to reflect that this basis for imposition of a CMP

is also a basis for an exclusion from participation in Medicare and the

State health care programs.

V. Hospital Outpatient Prospective Payment System (PPS)

In this proposed rule, we delineate the services that are covered

under the hospital outpatient prospective payment system (PPS) that we

are required to establish under section 1833(t) of the Act. We also

propose Medicare payment rates when those services are ordered or

furnished for diagnosis or treatment of a Medicare beneficiary who is

registered on hospital records as an outpatient, and who receives

services directly from the hospital.

In this section, we explain the framework for the hospital

outpatient PPS. This framework rests on Medicare's definition of an

outpatient, which we discuss in section IV.E, above, and on Medicare's

definition of what constitutes a hospital outpatient department or

clinic. In section VI., below, we address requirements to define and

distinguish among the various sites where services that are covered

under the hospital outpatient PPS could be furnished. For example, a

service furnished at an outpatient department or clinic located within

a hospital can also be furnished at a ``provider-based'' entity, at a

site away from a hospital that functions as though it were a department

within the hospital, at an ASC, and at a physician office. Under the

statute as it is currently written, in order to determine whether

Medicare makes payment for a service under the hospital outpatient PPS

that is the subject of this proposed rule or under another provision of

Medicare Part B, such as the ASC benefit or the physician fee schedule,

it is essential to clarify exactly where and under what conditions the

service was furnished.

This PPS will apply to covered hospital outpatient services

furnished by any hospital participating in the Medicare program, except

for those hospitals discussed below. Partial hospitalization services

in community mental health centers (CMHCs) will also be paid under this

PPS.

The cancer hospitals that are excluded from inpatient PPS will be

paid under hospital outpatient PPS. Although the BBA provides for a

separate conversion factor if necessary, we intend to pay cancer

hospitals using the same conversion factor and rates as all other

hospitals. Certain hospitals in Maryland furnish services that are

exempt from this system because they qualify under section 1814(b)(3)

of the Act for payment under the State's payment system. Such excluded

services are limited to the services paid under the State's payment

system as described in section 1814(b)(3) of the Act. Any other

outpatient services furnished by the hospital will be paid under the

outpatient PPS. Critical access hospitals are excluded from the

outpatient PPS because they are paid under a reasonable cost based

system, as required under section 1834(g) of the Act. All other

participating hospitals will be paid under hospital outpatient PPS.

Distinct parts of hospitals that are excluded under inpatient PPS

will be included in the outpatient PPS, to the extent that outpatient

services are furnished by the hospital. For example, a hospital with an

excluded inpatient psychiatric unit will have payment made under this

PPS for outpatient psychiatric services including to inpatients who are

not in a covered Part A stay.

A. Scope of Services Within the Outpatient PPS

Section 1833(t)(1)(B)(i) of the Act gives the Secretary the

authority to designate which services are to be covered under the

hospital outpatient PPS. In this section, we indicate the types of

services for which we are proposing to make payment under the hospital

outpatient PPS and the types of services we are proposing to exclude

from the scope of the hospital outpatient PPS.

Section 1833(t)(2)(A) of the Act requires the Secretary to develop

a classification system for the services that she designates are

covered under the hospital outpatient PPS. Section 1833(t)(2)(B) of the

Act allows the Secretary to classify covered outpatient services by

groups so that the services within each are comparable clinically and

with respect to the use of resources.

[[Page 47560]]

We refer to the hospital outpatient PPS classification system that we

have developed as the Ambulatory Payment Classification (APC) system.

The APC system consists of 346 groups of services that are covered

under the hospital outpatient PPS.

In section V.B., below, we explain how we assigned services and

procedures to APC groups and in sections V.C. and V.D., below, we

explain how we used the APC groups to determine hospital outpatient PPS

payment rates.

1. Services Excluded From the Hospital Outpatient PPS

Section 1833(t)(1)(B)(iii) of the Act excludes the following from

payment under the hospital outpatient PPS: ambulance services, physical

and occupational therapy, and speech-language pathology services. These

services will be paid under fee schedules in all settings.

Section 1833(t)(1)(B)(i) of the Act gives the Secretary the

authority to designate which hospital outpatient services are covered

under the outpatient PPS. In considering which services to include

under the outpatient PPS, we wanted to ensure that all hospital

outpatient services are paid under a prospectively determined amount.

Some hospital outpatient services (for example, clinical diagnostic

laboratory services, orthotics and prosthetics, ESRD dialysis services)

are currently paid based on fee schedules or other prospective rates.

Payments under these fee schedules apply not only to hospital

outpatient services, but the same or very similar payment rates apply

across a number of sites of ambulatory care. Such similar payments

across various settings creates a level playing field where HCFA pays

virtually the same payment for the same service, without regard to

where the service is furnished. So that we do not disrupt an existing

level playing field, we propose to exclude from our PPS, hospital

outpatient services that are currently paid prospectively determined

rates that are the same rates paid in other settings.

We are proposing to exclude from the hospital outpatient PPS the

following:

a. Certain services already paid for under fee schedules or other

payment systems including, but not limited to, services for patients

with ESRD that are paid for under the ESRD composite rate; laboratory

services paid under the clinical diagnostic laboratory fee schedule;

and DME, orthotics, prosthetics, prosthetic devices, prosthetic

implants and supplies (DMEPOS) paid for under the DMEPOS fee schedule

when the hospital is acting as a supplier of these items. An item such

as crutches or a walker that is given to the patient to take home, but

that may also be used while the patient is at the hospital, would be

billed to the DME regional carrier rather than being paid for under the

hospital outpatient PPS.

b. Hospital outpatient services furnished to inpatients of an SNF

regardless of whether the person is in a Part A covered stay and

furnished pursuant to the resident assessment or comprehensive care

plan and that are covered under the SNF PPS, furnished ``under

arrangements'' and billable only by the SNF.

c. Services and procedures that require inpatient care.

MedPAC Recommendation: In its March 1998 report to the Congress,

the Medicare Payment Advisory Commission (MedPAC) recommends that costs

associated with allied health professions training, such as nursing

schools and paramedical education, be excluded from the calculation of

the relative weights and the conversion factor used to set outpatient

PPS payment rates. MedPAC further recommends that Medicare make

separate payment for these costs, consistent with the manner in which

Medicare pays for allied health professions training costs under the

inpatient PPS.

Response: We agree with MedPAC's recommendation. We did not include

costs associated with allied health professions training in the

calculation of outpatient PPS relative weights and conversion factors.

We propose to pay hospitals that have allied health professions

training programs on a cost-pass-through basis similar to the way we

treat these costs under the hospital inpatient PPS.

2. Services Included Within the Scope of the Hospital Outpatient PPS

a. Services for Patients Who Have Exhausted Their Part A Benefits

Section 1833(t)(1)(B)(ii) of the Act provides for Medicare payment

under the hospital outpatient PPS for certain services furnished to

inpatients who have exhausted Part A benefits or otherwise are not in a

covered Part A stay. Examples of services covered under this provision

include diagnostic x-rays and certain other diagnostic services and

radiation therapy covered under section 1832 of the Act.

b. Partial Hospitalization Services

Section 1833(a)(2)(B) of the Act provides that partial

hospitalization services furnished in CMHCs be paid for under the

hospital outpatient PPS. Partial hospitalization is a distinct and

organized intensive psychiatric outpatient day treatment program,

designed to provide patients with profound and disabling mental health

conditions an individualized, coordinated, comprehensive, and

multidisciplinary treatment program.

c. Services Designated by the Secretary

Under the authority established by the statute at section

1833(t)(1)(B)(i), we further are proposing to include within the scope

of services for which payment is made under the hospital outpatient PPS

the following:

Services that are included within the outpatient PPS

system are all hospital outpatient services that have not been

identified for exclusion as described in section V.A.1., above. Among

the types of services that we have classified into APC groups for

payment under the hospital outpatient PPS are the following: surgical

procedures; radiology, including radiation therapy; clinic visits;

emergency department visits; diagnostic services and other diagnostic

tests; partial hospitalization for the mentally ill; surgical

pathology; cancer chemotherapy.

Services furnished to SNF inpatients that are not packaged

into SNF consolidated billing precisely because they are services that

are commonly furnished by hospital outpatient departments and that SNFs

would not be able to provide, such as CT scans, magnetic resonance

imaging, or ambulatory surgery requiring the use of an operating room.

Supplies such as surgical dressings that can be used

during surgery or other treatments in the hospital outpatient setting

that are also on the DMEPOS fee schedule. Payment for such supplies,

when they are used in the hospital, is packaged into the APC payment

rate for the procedure or service with which the items are associated.

Certain preventive services furnished to healthy persons,

such as colorectal cancer screening.

Section 4523(d)(3) of the BBA provides that we will make Part B

payment for certain medical and other health services, when furnished

by a provider of services or by others under arrangement with a

provider of services, under the outpatient PPS, if we would otherwise

pay those providers on a reasonable cost basis for those services.

Specifically, we are proposing that we would pay for the following

medical and other health services under the

[[Page 47561]]

outpatient PPS when furnished by a provider of services:

Antigens (as defined in 1861(s)(2)(G) of the Act);

Splints and casts (1861(s)(5));

Pneumococcal vaccine, influenza vaccine, hepatitis B

vaccine (1861(s)(10)).

We make Part B payment for the above services under the outpatient

PPS when those services are provided by a CORF, HHA, or hospice

program. However, this provision does not apply to services, furnished

by a CORF, that fall within the definition of CORF services at section

1861(cc)(1) of the Act. It also does not apply to services furnished by

a hospice within the scope of the hospice benefit. Nor does it apply to

services furnished by HHAs to individuals under an HHA plan of

treatment within the scope of the home health benefit.

3. Hospital Outpatient PPS Payment Indicators

Column B in Addendum B indicates the payment status of each HCPCS

code. Addendum B displays all HCPCS codes, including those incidental

services that are packaged into APC payment rates. Addendum G

identifies inpatient services not payable under outpatient PPS.

We use ``A'' to indicate services that are paid under some

other method such as the DMEPOS fee schedule or the physician fee

schedule.

We use ``E'' to indicate services for which payment is not

allowed under the hospital outpatient PPS or is not covered by

Medicare.

We use ``C'' to indicate inpatient services that are not

payable under the outpatient PPS.

We use ``N'' to indicate services that are incidental,

with payment packaged into another service or APC group.

We use ``P'' to indicate services that are paid only in

partial hospitalization programs.

We use ``S'' to indicate significant procedures for which

payment is allowed under the hospital outpatient PPS but to which the

multiple procedure reduction does not apply.

We use ``T'' to indicate surgical services for which

payment is allowed under the hospital outpatient PPS. Services with a

payment indicator ``T'' are the only services to which the multiple

procedure payment reduction applies.

We use ``V'' to indicate medical visits for which payment

is allowed under the hospital outpatient PPS. Providers must use ICD-9-

CM (International Classification of Diseases, Ninth Edition, Clinical

Modification) codes to determine the level of payment for services with

a payment indicator ``V''.

We use ``X'' to indicate ancillary services for which

payment is allowed under the hospital outpatient PPS.

The table below lists all of the outpatient PPS indicators and what

they designate.

Status Indicators

[How Medicare Pays for Various Services When They Are Billed for Hospital Outpatients]

--------------------------------------------------------------------------------------------------------------------------------------------------------

Indicator Service Status

--------------------------------------------------------------------------------------------------------------------------------------------------------

A..................................... Pulmonary Rehabilitation; Non-paid.

Clinical Trial.

C..................................... Inpatient Procedures............ Bill as Inpatient.

A..................................... Durable Medical Equipment, DMEPOS Fee Schedule.

Prosthetics and Orthotics.

E..................................... Non-covered Items and Services.. Non-paid.

A..................................... Physical, Occupational and Rehab Fee Schedule.

Speech Therapy.

A..................................... Ambulance....................... Ambulance Fee Schedule.

A..................................... EPO for ESRD patients........... National Rate.

A..................................... Clinical Diagnostic Laboratory Lab Fee Schedule.

Services.

A..................................... Physician Services for ESRD Bill to carrier.

patients.

A..................................... Screening Mammography........... Lower of Charge or National Rate.

N..................................... Incidental Services, packaged Packaged; no additional payment allowed.

into APC Rate.

P..................................... Partial Hospitalization Services Paid per diem.

S..................................... Significant Procedure, not Paid under hospital outpatient PPS (APC rate).

reduced when multiple.

T..................................... Significant Procedure, multiple Paid under hospital outpatient PPS (APC rate).

procedure reduction applies.

V..................................... Visit to Clinic or Emergency Paid under hospital outpatient PPS (APC rate).

Department.

X..................................... Ancillary Service............... Paid under hospital outpatient PPS (APC rate).

--------------------------------------------------------------------------------------------------------------------------------------------------------

B. Description of the Ambulatory Payment Classification (APC) Groups

In response to OBRA 1986 and OBRA 1990 requirements to develop a

hospital outpatient PPS, we examined systems that were in place or

under development, and we entered into a cooperative agreement with 3M-

Health Information Systems to develop a classification system for

outpatient services. The results of our review of existing systems are

outlined in a Report to Congress dated March 17, 1995. The report

identified the Ambulatory Patient Groups (APGs), which were developed

by 3M-Health Information Systems, as the most promising classification

system, and we recommended that APG-like groups be used as the basis

for the hospital outpatient PPS. Soon after the report was submitted to

the Congress, 3M-Health Information Systems released an updated version

(known as Version 2.0) of the APGs. Since the release of Version 2.0,

HCFA has revised the APGs based on more recent Medicare data. These

revisions constitute what we are calling the Ambulatory Payment

Classification (APC) system or groups that are proposed in this rule.

Services within the APC system are identified by HCPCS codes and

descriptions.

1. Setting Payment Rates Based on Groups of Services Rather Than on

Individual Services

MedPAC Recommendation: In its March 1998 report to the Congress

entitled ``Report to the Congress: Medicare Payment Policy,'' MedPAC

recommends that payment rates under the hospital outpatient PPS be

based upon relative weights for each individual service rather than

upon groups of similar services to help ensure consistent payments

across ambulatory settings. MedPAC gives several reasons to support

this recommendation:

If services in a group are not homogeneous, a single

payment rate for

[[Page 47562]]

all services in the group would not be accurate.

Hospitals whose case mix includes a greater than average

volume of higher-cost procedures in a group with a payment rate based

on median costs for all procedures in the group could face losses and

would have a financial incentive to provide only the lower-cost

procedures within a group and to avoid the higher-cost procedures.

Grouping services creates considerable administrative

burdens and problems related to data consistency, provider education,

the need for extensive technical assistance, and modification of claims

processing systems.

If costs for services in a group change at different

rates, the price for the group may become distorted over time,

necessitating periodic rebasing of group weights.

Using groups to set rates for services under the hospital

outpatient PPS moves away from standardizing payment systems across

ambulatory settings.

Response: We have carefully reviewed MedPAC's concerns about using

groups of services rather than individual services as the basis for

setting weights under the hospital outpatient PPS, and we believe that

we have addressed most of these concerns in our approach to ratesetting

using APC groups.

Section 1833(t)(2)(A) of the Act requires the Secretary to develop

a classification system for covered outpatient services. Section

1833(t)(2)(B) provides that this classification system may be composed

of groups, so that services within each group are comparable clinically

and with respect to the use of resources. The statute refers to ``each

such service (or group of services),'' implying that we may choose or

not choose to group services. We have chosen to set rates for groups of

similar services rather than setting rates for individual services for

several reasons:

The composition of the APC groups is based on two

premises: the procedures within each group must be similar clinically,

and the procedures must be similar in terms of resource costs. As we

explain below, we used 3M's APGs as a starting point, but we have

subsequently made changes to most of the 3M groups, taking into account

1996 outpatient claims data; data collected in a 1994 survey of ASC

costs and charges; data collected in 1995 and 1996 to establish

resource-based practice expense relative values under the Medicare

physician fee schedule; comments on surgical groupings following an ASC

town meeting held at HCFA in July 1996 at which participants reviewed

3M's Version 2.0 surgical APGs for consistency in terms of clinical

characteristics and resource costs; and the medical judgment of HCFA's

medical advisors. Further, we invite comments on the composition of all

the APC groups that are presented in this proposed rule and whether

readers believe that further refinements are needed. We request that

commenters support their recommendations for changes in the APC groups

with data regarding resource costs (time, supplies, equipment, labor

requirements) as well as clinical arguments.

We have also solicited comments on the same surgical APC groups

that are proposed in this rule as part of a proposed rule entitled

``Update of Ratesetting Methodology, Payment Rates, Payment Policies,

and the List of Covered Surgical Procedures for Ambulatory Surgical

Centers Effective October 1, 1998'' (HCFA-1885-P), published in the

Federal Register June 12, 1998 (63 FR 32290). We intend to coordinate

our review of all comments submitted timely during the comment period

for the hospital outpatient PPS proposed rule and the ASC proposed

rule. Any subsequent changes to the APC groups will be used by both

payment systems when we set their respective final rates. We have a

high level of confidence in the homogeneity of the APC groups that will

emerge from this exhaustive review process.

We have found that, in this context, setting weights at a

single code level suggests a level of precision that is often not

warranted due either to low procedure volume or questionable cost data.

Of the 10,500 codes in the HCPCS, over 5,000 describe

services that are covered under the hospital outpatient PPS. However,

an examination of outpatient claims data for 1997 reveals that as few

as 100 HCPCS codes account for more than a third of all coded services

billed during that year. MedPAC states in its report to the Congress

that its analysis of physician claims for 1996 revealed that more than

90 percent of hospital outpatient volume was accounted for by 300 high

volume services. Because so many codes were billed infrequently or not

at all, we found ratesetting to be facilitated by grouping together the

data that were available for codes that are similar clinically. We

disagree with MedPAC's suggestion that we establish payment groups

composed only of low-volume procedures. If we were to establish such

groups, we would either have to except these groups from the principle

of clinical consistency that applies to other APC groups or greatly

increase the number of APC groups within the outpatient PPS. And, this

approach does not solve the problem of how to establish weights for

procedures, whether they are taken individually or in groups, for which

we have inadequate cost data. Placing low Medicare volume procedures in

APC groups with which they are similar clinically and in terms of

resource consumption does not affect the weight established for the

group to any appreciable extent because the weight derives from the

higher volume procedures within the group.

Grouping closely related services, and paying the median

cost of the group, discourages the upcoding that occurs when individual

services that are similar have disparate median costs.

Using APC groups to set outpatient weights is consistent

with the ratesetting method we are proposing for ASCs. In a proposed

rule entitled ``Update of Ratesetting Methodology, Payment Rates,

Payment Policies, and the List of Covered Surgical Procedures for

Ambulatory Surgical Centers Effective October 1, 1998'' (HCFA-1885-P),

published in the Federal Register June 12, 1998 (63 FR 32290), we

propose payment rates for surgical procedures performed in Medicare-

approved ASCs using APC surgical groups proposed in this rule.

Payment rates for new or redefined services can be more

reliably established by assigning codes for these services to an

existing group of several codes that share characteristics with the new

code rather than trying to match it to an equivalent single procedure

for which we may or may not have reliable cost data.

Our experience basing ASC payment rates on groups of codes

has proved to be no more burdensome administratively than has our

experience with setting weights on a single code basis under the

Medicare physician fee schedule. Under the outpatient PPS, with weights

set by APC groups, hospitals will continue to use the same HCPCS coding

and the same claims forms that they use currently. Any burdens on HCFA

or on hospitals necessitating additional technical assistance or

systems changes are more a function of implementing an entirely new

payment system than of our setting weights on the basis of groups of

services instead of on the basis of single procedures or services.

We invite comments on our setting rates on the basis of groups of

services rather than on individual codes.

[[Page 47563]]

2. How the Groups Were Constructed

3M created APGs by combining procedure codes and diagnosis codes

into groups that were clinically related (such as all codes for repair

of fractured legs) and analyzing claims data to determine if the codes

that were clinically similar also used resources in similar ways (for

example, surgical repair would likely be more resource intensive than

closed manipulation and casting). The resources that were examined were

based on a 3-month sample of all Medicare claims for outpatient

services. The sample of nearly 15 million claims was selected from

claims paid in 1992 with the charges on each claim matched to

departmental cost-to-charge ratios from the hospital that provided the

services. The costs that were calculated using billed charges and

department cost-to-charge ratios included direct costs, as well as the

overhead for performing the services. The APGs were clustered into

significant procedures (both surgical and nonsurgical), medical visits

(in both clinics and emergency departments), and ancillary services.

Other groups captured incidental services (those that would not be paid

separately) and procedures for which no payment is made, such as

services specifically excluded from Medicare payment by statute.

Our Report to Congress recommended the use of APG-like groups for a

hospital outpatient prospective payment system. When the time came to

update payment groups for ASCs, which already were paid under a PPS, we

decided to propose the use of APG-like groups. The ASC industry was

accustomed to eight payment groups, with rates ranging from about $300

to about $900 in roughly $75 increments, without clinical coherence.

While interested in our proposal, the ASCs were concerned about

perceived misclassifications, with groups containing codes they

believed represented divergent resources. To accommodate these

concerns, we regrouped many surgical codes, creating more levels within

some ranges of groups and otherwise changing 3M's system. We also found

it necessary to change the medical APGs. The medical visit groups,

which under the APGs were grouped based on the patient's diagnosis,

were clearly distinct when laboratory services and plain film x-rays

were packaged in, but were much less distinct when those ancillary

services related to the visit were not packaged, as will be the case

initially under our system. We therefore investigated other approaches

to categorizing medical visits that would result in clearly defined

payment groups without extensive packaging. We discuss these approaches

in section V.B.4., below.

This process of revising 3M's APGs resulted in the development of

the set of 346 mutually-exclusive and exhaustive service categories

called ambulatory payment classification groups or APCs. The weights of

the groups proposed in this rule are based on new data, as required by

the BBA. We matched the database of 98 million hospital outpatient

claims paid in 1996 to the most recent available cost reports for each

hospital, and constructed the groups using these cost data. We defined

each outpatient service under the PPS by a HCPCS code and classified it

either into one of the APC groups for which an outpatient PPS payment

rate is established or into a non-payment category of services that are

excluded from the outpatient PPS. A weight is associated with each APC

group. See section V.C. of this rule for details on how we calculated

the weights. Procedures and services assigned a non-payment

classification include services that can be provided only on an

inpatient basis; codes or services that are not covered by Medicare;

and procedures and services paid under fee schedules or other payment

method.

3. Packaging Under the Groups

Packaged services are those that are recognized as contributing to

the cost of the services in an APC, but that we do not pay for

separately. Under the APC system, packaged services include the

operating room, recovery room, anesthesia, medical/surgical supplies,

pharmaceuticals, observation, blood, intraocular lenses, casts and

splints, donor tissue, and various incidental services such as

venipuncture. We ``packaged'' the services (and their costs) within the

APC group of procedures with which they were delivered in the base

year. Below is a list of the hospital revenue centers from which we

derived costs that were packaged within the APC groups. For example, a

given surgical procedure would have a cost for the use of the operating

and recovery rooms in every case. However, supply costs might vary,

with some patients requiring special drains and dressings and others

needing minimal dressings. The average packaged cost for supplies might

represent, for example, $200 for the former group 40 percent of the

time, and $150 for the rest. Thus, the APC would include $170 for

supplies. Similarly, only a few cases would have included observation

in the base year, but each case in the group would include a small

amount for the times we associated observation with the cases in the

group.

We have packaged the cost of pharmaceuticals and biologicals within

APC groups. We did this because we believe drugs are usually provided

in connection with some other treatment or procedure. We have captured

aggregate cost data on all drugs that were billed with HCPCS codes and

those billed with revenue center codes, whether or not a HCPCS was

entered. Thus, historical patterns of drug use are captured within the

APC groups with which the drugs were billed during the base year. The

only separate drug groups we have created are for chemotherapeutic

agents, because those were separately identified in 3M's APG system.

Because we intended to use an APG-like system, we required detailed

coding of chemotherapeutic agents in order to be able to capture the

costs of the specific drugs. We did not require HCPCS coding of other

drugs, so we cannot specifically identify costs of non-chemotherapy

drugs. We understand, however, that some rarely-used drugs are both

expensive and used in only a few hospitals. In those instances, APC

payment rates may not adequately represent costs for hospitals that

treat patients who require infusions of very costly drugs or

biologicals. Because we do not have bills that were coded to identify

these high-cost drugs individually, we cannot evaluate the impact of

paying separately for high-cost drugs. We could require HCPCS coding of

all drugs or certain categories of drugs in order to gather the data,

but we know hospitals could find such a requirement burdensome. We

solicit comments on this issue.

Currently, drugs that can be self-administered are not covered

under Part B of Medicare (with certain specific exemptions for blood-

clotting factors, immunosuppresives, erythropoietin for dialysis

patients, and certain oral chemotherapeutic agents and antiemetics).

This presents problems in the outpatient hospital setting because even

a pain killer given to a groggy patient postoperatively would not be

covered. The only way such drugs can be paid for is for the hospital to

bill the beneficiary. In many cases, the hospital does not, both

because keeping track of such small charges for billing purposes is

burdensome and because beneficiaries would not understand why they are

being asked to pay for, for example, pain medication that was clearly

related to the procedure they had undergone.

We propose to allow hospitals to provide drugs to patients without

requiring that the hospital bill the

[[Page 47564]]

patient, and without Medicare's paying the hospital. Normally,

hospitals are not allowed to waive such billing, since not charging a

patient could be seen as an inducement to the patient to use other

services at the hospital, for which the hospital would be paid.

However, if the benefit is not advertised, we believe that provision of

the self-administered drugs at no charge to the beneficiary need not

constitute an inducement in violation of the anti-kickback rules. The

hospital may not advertise this to the public or in any other way

induce patients to use the hospital's service in return for forgoing

payment.

Recommendation: MedPAC recommends that the unit of payment under

the outpatient PPS be the individual service or procedure that is

furnished and that payment for services and supplies integral to the

individual service or procedure be bundled within that single unit of

payment.

Response: We agree both with MedPAC's recommendation regarding what

should constitute the unit of payment under the outpatient PPS, and

with MedPAC's recommendation regarding the ``bundling'' of payment,

which we call ``packaging,'' for supplies and services that are

integral to the individual service or procedure that constitutes the

unit of payment. All services and procedures for which payment is to be

made under the outpatient PPS are identified by HCPCS codes and

descriptions. This approach of identifying individual services by HCPCS

as the unit for payment parallels the unit for payment under both the

Medicare physician fee schedule and the ASC facility services benefit.

In addition, as we explain above, the payment amount for each HCPCS

code is a packaged payment that takes into account the costs associated

with services and supplies that are integral to the primary HCPCS-coded

service or procedure and that are furnished at the same time and in the

same place as the primary service or procedure. Because we modeled the

outpatient PPS package of services for surgical procedures on the

package of services that is the basis for payments for facility

services furnished by Medicare approved ASCs, the definition of

packaging will become standardized across both settings upon

implementation of the outpatient PPS.

MedPAC cites as a disadvantage of using individual services or

procedures as the unit for payment the limited options that are

available to control the volume of unnecessary ancillary services. We

discuss in section V.J. how we intend to address volume control under

the outpatient PPS. While a broader definition of packaging that

includes related ancillaries such as diagnostic x-rays and other

diagnostic tests that are furnished in other settings or at a different

time than the primary service or procedures may have potential benefits

not realized by the more limited packaging that we are using, we are

concerned that applying different definitions of packaging to payments

for the same primary service furnished in different settings would

defeat the goal of establishing a unified payment structure across

sites. One component of achieving this goal is to employ a consistent

definition of packaging across all sites of ambulatory services. We

solicit comments on the packaging options and the implications for

ratesetting and volume control of using the same or different

definitions of packaging across different settings.

The following table identifies by revenue code the services and

items that are packaged into the various categories of APC groups

(surgery, radiology, other diagnostic, medical visits, and all other

APC groups).

Packaged Services by Revenue Center

------------------------------------------------------------------------

SURGERY

------------------------------------------------------------------------

250.................................... PHARMACY.

251.................................... GENERIC.

252.................................... NONGENERIC.

257.................................... NONPRESCRIPTION DRUGS.

258.................................... IV SOLUTIONS.

259.................................... OTHER.

270.................................... M&S SUPPLIES.

271.................................... NONSTERILE SUPPLIES.

272.................................... STERILE SUPPLIES.

360.................................... OPERATING ROOM.

361.................................... MINOR SURGERY.

369.................................... OTHER.

370.................................... ANESTHESIA.

379.................................... OTHER.

380.................................... ``BLOOD, GENERAL CLASS''.

381.................................... PACKED RED CELLS.

382.................................... WHOLE BLOOD.

383.................................... PLASMA.

384.................................... PLATELETS.

385.................................... LEUCOCYTES.

386.................................... OTHER COMPONENTS.

387.................................... OTHER DERIVATIVES.

389.................................... OTHER BLOOD.

390.................................... BLOOD STORAGE AND PROCESSING.

391.................................... BLOOD ADMINISTRATION.

399.................................... OTHER BLOOD PROC/STORAGE.

490.................................... ``AMBULATORY SURGERY, GENERAL

CLASS''.

491.................................... OTHER AMBULATORY SURGICAL CARE.

630.................................... DRUGS REQUIRING ID.

631.................................... SINGLE SOURCE DRUG.

632.................................... MULTIPLE SOURCE DRUG.

636.................................... DRUGS REQUIRING DETAILED

CODING.

700.................................... CAST ROOM.

709.................................... OTHER.

710.................................... RECOVERY ROOM.

719.................................... OTHER.

720.................................... LABOR ROOM.

721.................................... LABOR.

722.................................... DELIVERY.

723.................................... CIRCUMCISION.

724.................................... BIRTHING CENTER.

729.................................... OTHER.

750.................................... GASTROINTESTINAL.

759.................................... OTHER.

760.................................... OBSERVATION ROOM.

761.................................... TREATMENT ROOM.

762.................................... OBSERVATION ROOM.

769.................................... OTHER TREATMENT ROOM.

890.................................... OTHER DONOR BANK.

891.................................... BONE.

892.................................... ORGAN.

893.................................... SKIN.

899.................................... OTHER.

920.................................... ``OTHER DIAGNOSTIC SERVICES,

GENERAL CLASS''.

929.................................... OTHER DIAGNOSTIC SERVICES.

940.................................... ``OTHER THERAPEUTIC SERVICES,

GENERAL CLASS''.

949.................................... OTHER THERAPEUTIC SERVICES.

------------------------------------------------------------------------

MEDICAL VISIT

------------------------------------------------------------------------

250.................................... PHARMACY.

251.................................... GENERIC.

252.................................... NONGENERIC.

257.................................... NONPRESCRIPTION DRUGS.

258.................................... IV SOLUTIONS.

259.................................... OTHER.

270.................................... M&S SUPPLIES.

271.................................... NONSTERILE SUPPLIES.

272.................................... STERILE SUPPLIES.

279.................................... OTHER.

380.................................... ``BLOOD, GENERAL CLASS''.

381.................................... PACKED RED CELLS.

382.................................... WHOLE BLOOD.

383.................................... PLASMA.

384.................................... PLATELETS.

385.................................... LEUCOCYTES.

386.................................... OTHER COMPONENTS.

387.................................... OTHER DERIVATIVES.

389.................................... OTHER BLOOD.

390.................................... BLOOD STORAGE AND PROCESSING.

391.................................... BLOOD ADMINISTRATION.

399.................................... OTHER BLOOD PROC/STORAGE.

630.................................... DRUGS REQUIRING ID.

631.................................... SINGLE SOURCE DRUG.

632.................................... MULTIPLE SOURCE DRUG.

636.................................... DRUGS REQUIRING DETAILED

CODING.

762.................................... OBSERVATION ROOM.

------------------------------------------------------------------------

DIAGNOSTIC

------------------------------------------------------------------------

250.................................... PHARMACY.

251.................................... GENERIC.

252.................................... NONGENERIC.

254.................................... INCIDENT TO OTHER DIAGNOSTIC.

257.................................... NONPRESCRIPTION DRUGS.

258.................................... IV SOLUTIONS.

259.................................... OTHER.

270.................................... M&S SUPPLIES.

271.................................... NONSTERILE SUPPLIES.

272.................................... STERILE SUPPLIES.

360.................................... OPERATING ROOM.

361.................................... MINOR SURGERY.

369.................................... OTHER.

370.................................... ANESTHESIA.

372.................................... INCIDENT TO OTHER DIAGNOSTIC.

379.................................... OTHER.

380.................................... ``BLOOD, GENERAL CLASS''.

381.................................... PACKED RED CELLS.

382.................................... WHOLE BLOOD.

383.................................... PLASMA.

384.................................... PLATELETS.

385.................................... LEUCOCYTES.

386.................................... OTHER COMPONENTS.

387.................................... OTHER DERIVATIVES.

389.................................... OTHER BLOOD.

390.................................... BLOOD STORAGE AND PROCESSING.

391.................................... BLOOD ADMINISTRATION.

399.................................... OTHER BLOOD PROC/STORAGE.

[[Page 47565]]

450.................................... ER.

459.................................... OTHER.

622.................................... INCIDENT TO OTHER DIAGNOSTIC.

630.................................... DRUGS REQUIRING ID.

631.................................... SINGLE SOURCE DRUG.

632.................................... MULTIPLE SOURCE DRUG.

636.................................... DRUGS REQUIRING DETAILED

CODING.

710.................................... RECOVERY ROOM.

719.................................... OTHER.

762.................................... OBSERVATION ROOM.

------------------------------------------------------------------------

RADIOLOGY

------------------------------------------------------------------------

250.................................... PHARMACY.

251.................................... GENERIC.

252.................................... NONGENERIC.

255.................................... INCIDENT TO RADIOLOGY.

257.................................... NON-PRESCRIPTION DRUGS.

258.................................... IV SOLUTIONS.

259.................................... OTHER.

270.................................... M&S SUPPLIES.

271.................................... NONSTERILE SUPPLIES.

272.................................... STERILE SUPPLIES.

360.................................... OPERATING ROOM.

361.................................... MINOR SURGERY.

369.................................... OTHER.

370.................................... ANESTHESIA.

371.................................... ANESTHESIA INCIDENT TO

RADIOLOGY.

379.................................... OTHER.

380.................................... ``BLOOD, GENERAL CLASS''.

381.................................... PACKED RED CELLS.

382.................................... WHOLE BLOOD.

383.................................... PLASMA.

384.................................... PLATELETS.

385.................................... LEUCOCYTES.

386.................................... OTHER COMPONENTS.

387.................................... OTHER DERIVATIVES.

389.................................... OTHER BLOOD.

390.................................... BLOOD STORAGE AND PROCESSING.

391.................................... BLOOD ADMINISTRATION.

399.................................... OTHER BLOOD PROC/STORAGE.

621.................................... SUPPLIES INCIDENT TO RADIOLOGY.

630.................................... DRUGS REQUIRING ID.

631.................................... SINGLE SOURCE DRUG.

632.................................... MULTIPLE SOURCE DRUG.

636.................................... DRUGS REQUIRING DETAILED

CODING.

710.................................... RECOVERY ROOM.

719.................................... OTHER.

762.................................... OBSERVATION ROOM.

------------------------------------------------------------------------

ALL OTHER APC GROUPS

------------------------------------------------------------------------

250.................................... PHARMACY.

251.................................... GENERIC.

252.................................... NONGENERIC.

257.................................... NONPRESCRIPTION DRUGS.

258.................................... IV SOLUTIONS.

259.................................... OTHER.

270.................................... M&S SUPPLIES.

271.................................... NONSTERILE SUPPLIES.

272.................................... STERILE SUPPLIES.

279.................................... OTHER.

380.................................... ``BLOOD, GENERAL CLASS''.

381.................................... PACKED RED CELLS.

382.................................... WHOLE BLOOD.

383.................................... PLASMA.

384.................................... PLATELETS.

385.................................... LEUCOCYTES.

386.................................... OTHER COMPONENTS.

387.................................... OTHER DERIVATIVES.

389.................................... OTHER BLOOD.

390.................................... BLOOD STORAGE AND PROCESSING.

391.................................... BLOOD ADMINISTRATION.

399.................................... OTHER BLOOD PROC/STORAGE.

630.................................... DRUGS REQUIRING ID.

631.................................... SINGLE SOURCE DRUG.

632.................................... MULTIPLE SOURCE DRUG.

636.................................... DRUGS REQUIRING DETAILED

CODING.

762.................................... OBSERVATION ROOM.

------------------------------------------------------------------------

4. Treatment of Clinic and Emergency Visits

The major issue we face in determining payment for clinic and

emergency room visits is whether to include diagnosis as well as

Physicians' Current Procedural Terminology (CPT) codes in setting

payment rates. We solicit comments on the approaches that we discuss

below and on other possible alternatives.

Determining payment for clinic and emergency room visits requires a

variety of considerations and trade-offs. These include:

The impact of packaging on setting payment rates (for

example, the more packaging, the greater the difference among APC

payments; however, we are not proposing a fully packaged system

initially, which reduces payment differences and may necessitate

additional policies to increase differences across payment groups);

How to code visits in a manner that recognizes variations

in service intensity and levels of resource consumption (for example,

how to pay more for visits that cost more);

How to keep the system administratively manageable (for

payment purposes, we assign 31 CPT codes that describe different levels

of evaluation and management services to 7 APC groups);

How to define critical care in terms of facility as

opposed to physician inputs (for example, what is an appropriate

facility payment for critical care when critical care CPT codes are

currently determined to reflect physician inputs);

Data problems associated with identifying costs from

claims that list multiple services (for example, the data analysis we

have conducted so far reflects only data from claims for single visits;

we are analyzing data from multiple visit claims to glean additional

information relevant to these policies);

How to move toward greater uniformity of payments across

ambulatory settings so as to remove payment as an incentive for

determining site of service (for example, the trade-off that could

result if, by enhancing differentiation of payments for services within

the hospital outpatient setting, we were to increase payment

differences across settings for services that are provided in both

hospital outpatient departments and physician offices).

Given the range of issues surrounding payments for clinic and

emergency room visits, we are continuing to weigh different options. We

are concerned that using diagnosis coding to set rates for hospital

outpatient clinic visits could increase disparities in payment

methodology between outpatient departments and physician offices, for

which a new system of resource based practice costs is just now being

proposed. (These concerns do not extend as much to emergent and

critical care, which are not routinely furnished in physician office

settings.) Diagnostic coding has not been used in the past to adjust

payments in the physician office setting and there is no general

evidence that practice expense (or work) in physician office settings

varies by the patient's diagnosis. Moreover, because patients in the

hospital outpatient department can be shifted easily to alternative

outpatient settings, adjustment of facility costs to take diagnosis

into account in one setting but not others may create incentives to

shift patients among ambulatory settings in unknown ways.

Coding Visits

We have considered several approaches to setting prospective

payment rates for hospital clinic and emergency visits. We reviewed the

medical visit groups in 3M's version 2.0 of APGs that are based solely

on ICD-9 diagnosis codes, with 80 APGs providing several groups for

each body system; we analyzed the effect on ratesetting of defining

clinic and emergency visits solely by CPT code; and, we analyzed the

effect of using a matrix that combines patient diagnosis with a CPT

code to describe the nature of the outpatient encounter. We discuss

these various approaches in more detail here and some of the advantages

and disadvantages of each. Again, we solicit comments on these

approaches to setting payment rates for clinic and emergency room

visits as well as comments on alternative approaches that are not

mentioned here.

Approach 1: Using Diagnosis Codes Only

3M's approach of using only ICD-9 diagnosis codes with extensive

packaging results in a wide range of group payment rates. The group

that pays the most is almost 13 times as costly as the lowest-paid

group. However, when we removed minor laboratory tests, x-rays, and

certain other minor procedures that had been packaged into 3M's medical

visit APGs in order to conform with the packaging that we propose in

this proposed rule,

[[Page 47566]]

the difference between the highest and the lowest paid group dropped to

not quite five times. (Fully packaged APGs are sufficiently

differentiated for payment purposes, while partially packaged APGs are

not; therefore, if we were to move to a fully packaged system, we would

re-evaluate approaches using diagnosis.)

We also found that grouping clinic and emergency visits solely on

the basis of diagnoses tends to result in visits that require major

resources for critical cases clustering together with less resource-

intensive follow-up visits after the crisis has passed.

Approach 2: Using CPT Codes Only

The APC groups that we propose in this proposed rule as the basis

for setting rates for surgical services consist solely of CPT codes. We

looked at using only CPT codes to establish payment groups for

outpatient clinic and emergency room visits, but we found that the

variation between the most costly and the least costly encounter was

quite flat, with the former only 4.5 times greater than the latter.

When basing payment on CPT codes alone, the range reflects hospitals'

billing patterns in increasing level of intensity, but cases at the

margin are overwhelmed by the numbers of visits billed so that

individual cases with low or high costs are not discernible. Also,

billing patterns reflect standard bills, not the resources used in any

particular case.

Approach 3: CPT and Diagnosis Hybrid

We looked at another approach that bases payment rates on a hybrid

of CPT codes and patient diagnoses. We first assigned 31 CPT codes that

describe physician encounters with patients in the outpatient setting

to seven APC groups: three for clinic visits, three for emergency

department visits, and one for critical care. We also collapsed

approximately 12,000 ICD-9 codes into 20 major diagnostic categories

(MDCs), arranged generally by body system. Classifying services in this

fashion produces a more manageable number of groups, and results in a

matrix of 121 CPT/diagnosis combinations, in which the most costly

combination is more than 10 times as costly as the least.

Our grouping of evaluation and management CPT codes was based on

several factors. As we note above, we grouped 31 CPT codes that

represent different levels of physician ``evaluation and management''

of patients into seven APC groups. (For a more complete discussion,

refer to the evaluation and management services guidelines in

Physicians' Current Procedural Terminology 1998 edition (CPT '98)

published by the American Medical Association.) CPT codes are more

descriptive of physician effort than of facility use, and our cost data

showed little difference between level 1 and level 2 visits or between

level 4 and level 5 visits. Therefore, we elected to combine some of

the CPT codes into a single group, for example, the two least intensive

outpatient visit codes, 99201 and 99202, are both in APC 911, which is

the lowest level of clinic visits, etc. Grouping CPT codes together in

this fashion reduces administrative burden, and our data analysis shows

only small additional cost differences among the complete set of CPT

medical visit codes. Moreover, we found that grouping CPT codes in this

fashion evens out certain anomalies that arise when an emergency

department furnishes services that would not typically be thought of as

emergency care, such as suture removal, or treatment of a skin disease.

Even though suture removal or treatment of conditions such as impetigo,

conjunctivitis, etc. is performed in emergency departments, these types

of services are more appropriately furnished at a clinic because they

do not require the more elaborate resources of the emergency

department. Assigning codes to APC groups would allow us to set payment

for care of patients with minor problems in the emergency department at

a level equivalent to payment for the same care when it is furnished at

a clinic. We welcome comments on payment for services that do not

require emergency room use.

Using a matrix of evaluation and management codes with patient

diagnosis would offset the disadvantages noted above of grouping solely

by CPT code (too little payment variation) or solely by patient

diagnosis (reduced payment variation and commingling of resource

intensive and non-resource intensive visits). Defining a clinic or

emergency visit APC in terms of both CPT code and diagnosis, even when

grouping codes to provide a manageable number of groups, would better

recognize the facility resources consumed in providing emergency and

critical care visits. Many such visits, of course, cluster around the

same dollar amount, but this is expected because many visits involve

typical care and standard resources. The cases that represent care at

higher or lower levels of intensity appear to represent real

differences in resource consumption. We used the CPT/patient diagnosis

hybrid to model impacts. We do not believe that payment to individual

hospitals would be significantly affected, whether we base payment

rates on groups of CPT codes only or on groups that combine CPT codes

and patient diagnosis.

Using a matrix that combines CPT codes with patient diagnosis to

set payment rates for clinic and emergency department visits would also

improve the coding of diagnoses in the hospital outpatient setting

generally. Such improved diagnosis coding is critical to evaluating

future degrees of packaging in the APC system, and we have already

noted that more packaging tends to increase the measured cost

differences across APC groups.

However, as we discussed earlier, there are also problems with

using a matrix that includes diagnosis codes for hospital outpatient

visits. We are concerned about the effect of using a method to pay for

clinic visits in the hospital outpatient setting that is at variance

with the method we use to pay for the same service in a physician

office. A possible alternative to using diagnosis codes as an indicator

of resource consumption in connection with medical visits in hospital

outpatient departments is to create a uniform fee schedule for

physician visits across all ambulatory settings, paying the site at

which the service is furnished the physician practice expense component

as a ``facility fee.'' However, the latter option would require

legislation and a possible reallocation of the overhead currently

associated with medical visits in the outpatient department to other

outpatient services. Given the complexity of these issues, it may not

be desirable to introduce additional differences, such as diagnosis,

among payments in medical visits at this time. We invite public comment

on all of the issues raised in the discussion in this section. In

addition, after this rule is published, we will be reexamining our

outpatient database and extending our analysis to multiple visit data.

We will incorporate the findings of these additional analyses into our

final decision.

Hypothetical Case Using the Hybrid

The following is a hypothetical case presented to illustrate how

payment would be determined using the CPT code/diagnosis code hybrid. A

new patient, an elderly woman who has recently come to live with her

family in the area, presents to the primary care clinic complaining of

fatigue, shortness of breath, swollen ankles, and loss of vision. The

physician spends 45 minutes eliciting the patient's medical, family,

and social history and performing an extensive physical examination.

Suspecting cataracts as the

[[Page 47567]]

cause of her loss of vision, the physician suggests she make an

appointment in the eye clinic. Suspecting congestive heart failure as

the cause of her other symptoms, but also suspicious of coexisting

diabetes and hypertension, the physician orders laboratory tests and an

electrocardiogram (ECG) to be performed that day, and schedules an

appointment in the cardiovascular clinic for a later date. If payment

to the hospital were to be made on the basis of a CPT code/ICD-9 code

matrix, the hospital's claim for services furnished in connection with

this visit would identify the following information: CPT code 99204,

comprehensive outpatient visit, new patient, and ICD-9 diagnosis code

401.1, benign hypertension. Payment would be determined by mapping CPT

code 99204 to APC group 915, levels 4 and 5 clinic visit, and ICD-9

code 4011 to MDC 36, cardiovascular system diseases. Payment would be

the rate established for the resulting hybrid group identifier, 91536.

Addendum A lists the payment rates for the proposed hospital clinic and

emergency room payment groups. Separate payment would be made under the

clinical diagnostic laboratory fee schedule for the laboratory work;

the ECG would be paid for separately on the basis of the payment rate

established for APC 950.

Several months later, the same patient, who now is known to have

congestive heart failure, returns to the primary care clinic

complaining of a cough and runny nose. The physician, having determined

that the symptoms are due to a virus, recommends using a humidifier and

drinking extra fluids. The hospital would code this visit with CPT code

99212 (problem-focused outpatient visit, established patient) and with

ICD-9 diagnosis code 460 (acute nasopharyngitis, or common cold). This

combination, in turn, would map to APC 911, levels 1 and 2 clinic

visit, plus MDC 31, ear, nose, mouth and throat diseases, and payment

for this patient's second visit to the hospital clinic would be based

on the rate established for hybrid group 91131.

Payment for Screening Services

Every patient who presents to an emergency department and requests

(or has requested on his or her behalf) a screening must be screened in

accordance with section 1867(a) of the Act. If the physician or other

hospital staff who performs the screening determines that no medical

emergency exists, the patient can be referred to one of the hospital's

clinics or to another provider such as a physician office for further

treatment, or the emergency department personnel can decide to treat

the patient in the emergency department. We propose to create a HCPCS

code to be used to bill the screening. Payment for this new code will

be low because no treatment is included in the screening. Payment for

the screening APC is made only when no additional services are

furnished by the emergency department. If non-emergency treatment is

furnished, the appropriate emergency room visit should be billed, and

not the screening. Similarly, if the screening reveals that an

emergency does exist and treatment is instituted immediately, the

screening should not be billed; the screening is subsumed into the

further treatment. If an emergency room physician feels the need to

consult with another physician before deciding whether the patient

needs emergency treatment, the consultation is part of the original

screening, and the hospital should bill for only one screening visit,

if a bill for screening is appropriate, as described above.

Payment for Critical Care

We propose to have hospitals use CPT code 99291 to bill for

outpatient encounters in which critical care services are furnished. We

use the CPT definition of ``critical care,'' which is the evaluation

and management of the unstable critically ill or injured patient who

requires the constant attendance of a physician. Under the outpatient

PPS, we would allow the hospital to use CPT 99291 in place of, but not

in addition to, a code for a medical visit or for an emergency

department service. However, the entire duration of the hospital

outpatient department's critical care services for an individual

patient is represented by CPT 99291, and we would not allow the

facility to use CPT 99292 to bill for critical care services extended

in 30-minute increments, as would the attending physician. (We have

packaged the costs associated with subsequent hours of critical care

billing into the APG group of services with which the critical care

hours were billed in the base year.) If other services, such as

surgery, x-rays, or cardiopulmonary resuscitation, are furnished on the

same day as the critical care services, we would allow the hospital to

bill for them separately.

We expect that the numbering scheme proposed in this rule to

distinguish clinic and emergency room visits would be changed in the

final rule. Although we believe the 5-digit identifier used in this

proposal makes it easier to see the relationship between the CPT code

for the level of the visit and the ICD-9-CM code for the diagnosis, for

claims processing purposes, we would have to replace 5-digit

identifiers with 3-digit ones.

5. Treatment of Partial Hospitalization Services

In accordance with section 1861(ff) of the Act, partial

hospitalization services may be furnished only by a hospital to its

outpatients or by a community mental health center (CMHC). We published

an interim final rule on February 11, 1994 (59 FR 6570) to establish

coverage criteria and payment requirements for partial hospitalization

programs. In that rule, we indicated that physician services and

certain nonphysician practitioner services are not considered to be

partial hospitalization services. Payment for these services is outside

the scope of this proposed rule.

The partial hospitalization program of services is organized and

furnished similarly, whether the program is administered by a hospital

or by a CMHC. Section 1833(a)(2)(B) of the Act requires that payment

for CMHC partial hospitalization services be based on the hospital

outpatient PPS. Thus, the methodology we are proposing would apply to

hospital outpatient and to CMHC partial hospitalization programs. The

current rules governing CMHC payment appear in 42 CFR part 413. This

proposed rule would amend Sec. 413.1 to indicate that payment for

partial hospitalization services furnished by CMHCs is made in

accordance with the hospital outpatient prospective payment system

described in part 419 of this chapter.

Patients eligible for the Medicare partial hospitalization benefit

comprise two groups: patients who have been discharged from a

psychiatric hospital for whom partial hospitalization services are

provided in lieu of continued inpatient treatment; and patients who

exhibit disabling psychiatric/psychological symptoms as a result of an

acute exacerbation of a severe and persistent mental illness for whom

the partial hospitalization services are provided in lieu of admission

to an inpatient psychiatric hospital.

As required by section 1835(a)(2) of the Act, admission to a

partial hospitalization program is limited to patients whose physicians

certify that: (1) the individual would require inpatient psychiatric

care in the absence of partial hospitalization services; (2) an

individualized, written plan of care has been established by a

physician and is reviewed periodically by a physician; and (3) the

patient is or was under the care of a physician. This certification

would be made when the physician

[[Page 47568]]

believes that the course of the patient's current episode of illness

would result in psychiatric hospitalization if the partial

hospitalization services are not substituted.

The acute psychiatric condition being treated by a partial

hospitalization program must require intensive active treatment,

including a combination of medical and nursing interventions,

individual and group psychotherapy, occupational therapy, family

counseling, and various adjunctive therapeutic activities that are not

primarily recreational or diversionary. The patient's degree of

impairment must be severe enough to require a multidisciplinary

structured day program, but not so severe that patients are incapable

of participating in and benefitting from an active treatment program.

Patients must require partial hospitalization services at levels of

intensity and frequency comparable to patients in an inpatient setting

for similar psychiatric illnesses. In addition, the patient must have

an adequate community-based network to support the patient outside the

partial hospitalization program.

Typically, patients admitted to a partial hospitalization program

initially require full-time participation in order to provide crisis

stabilization, that is, 6 hours of programming for 5 days per week. In

some cases, the patient may ultimately require inpatient psychiatric

care despite the partial hospitalization services. However, in most

cases, as the patient's symptoms diminish and functional goals are

achieved, the frequency of attendance is reduced to 4 days and, later,

to 3 days. Once the patient's participation drops to this level, the

need for partial hospitalization services in lieu of inpatient

psychiatric care is not generally indicated and the patient would be

discharged to a lower level of outpatient psychiatric care.

Under the current reasonable cost payment system, providers report

the total number of units for each partial hospitalization service

furnished during the billing period. As noted earlier, hospitals are

also required to report claims for services using HCPCS codes. Payment

for the additional overhead cost of supportive staff and recordkeeping

for a comprehensive day program of services would be built into the

provider's charge structure for covered partial hospitalization

services and paid through the cost report settlement process.

Because a day of care is the unit that defines the structure and

scheduling of partial hospitalization services, we believe that a per

diem payment for partial hospitalization services is a more appropriate

methodology than billing for each component of a partial

hospitalization program. A packaged, per diem approach is used by other

governmental and private payers when paying for partial hospitalization

services. In order to determine the median cost for the partial

hospitalization APC group, we analyzed the components reported for each

partial hospitalization service over the course of a billing period and

established a per diem payment rate. This analysis resulted in an APC

payment rate of $208.25 per day, of which $46.78 is the beneficiary's

copayment.

As noted above, partial hospitalization providers currently report

the total number of units for each service billed. We have revised the

billing instructions to require CMHCs to report HCPCS codes and to

require hospitals and CMHCs to report the date of each service,

effective October 1, 1998. We welcome information from the public to

assist us in refining the median cost for a day of partial

hospitalization. We are particularly interested in information

concerning the mix of services that constitute a typical partial

hospitalization day.

We have not established a group to represent a half-day of partial

hospitalization, although we are aware that other governmental and

private payers have adopted both a full and half-day rate for partial

hospitalization. For example, CHAMPUS (Civilian Health and Medical

Program of the Uniformed Services) recognizes a day with at least 6

hours of programming as a full day, while days with at least 3

programmed hours, but less than 6, are paid a per diem rate equal to 75

percent of the full day rate. However, the CHAMPUS per diem is not tied

to the cost of certain covered services, but rather to the number of

programmed hours the patient attends. As noted above, we will begin to

collect information October 1, 1998, regarding which services are

furnished each day. Once we have analyzed this information, we will be

able to determine the extent to which half-days are used typically in

partial hospitalization treatment planning. We are interested in public

comments regarding whether we should establish a half-day partial

hospitalization group.

We have also decided not to propose a minimum number of hours or

units of covered services that constitute a partial hospitalization day

at this time. However, we are concerned that a low frequency of

participation, either very few days per week or few covered services

per day, indicate that the partial hospitalization program is no longer

reasonable and necessary and the patient could be managed in a less

intensive level of outpatient treatment or periodic office visits.

Fiscal intermediaries in performing medical review of claims will

continue to make decisions regarding whether the services furnished a

patient are covered and payable as partial hospitalization services. As

noted above, CHAMPUS has established a minimum of 3 hours of service

for payment of their partial hospitalization per diem amount. We are

specifically requesting public comment on adopting a minimum number of

services for Medicare payment purposes.

We note that many other payers have established an annual limit on

the number of covered partial hospitalization days. There is currently

no duration limit on the Medicare partial hospitalization benefit.

Rather, in order to be covered by Medicare, partial hospitalization

services must be reasonably expected to improve or maintain the

patient's condition and to prevent relapse or hospitalization. For most

psychiatric patients, particularly those with long term, chronic

conditions, control of symptoms and maintenance of a functional level

to avoid hospitalization is an acceptable expectation of improvement.

It is not necessary for a course of partial hospitalization services to

have, as its goal, restoration of the patient to the level of

functioning exhibited prior to the onset of the illness. Some patients

may undergo a course of treatment that increases their level of

functioning but then reach a point where further significant

improvement is not expected. Continued coverage after this point may be

dependent upon evidence that the patient is not able to maintain

stability with less intensive treatment. Although we are not proposing

a duration standard for partial hospitalization at this time, we are

concerned that there is significant variation in duration of treatment.

We solicit data that show treatment duration from providers of partial

hospitalization services. We are also considering specifying a

timeframe for periodic physician recertification of need for partial

hospitalization services as a method to ensure that a patient's

individual needs continue to require the intensity of a partial

hospitalization program.

Finally, we are concerned about the impact of establishing a per

diem payment for partial hospitalization on the provision of other

outpatient mental health services. Patients should be

[[Page 47569]]

referred to the outpatient mental health treatment program that best

suits their individual needs. Partial hospitalization programs differ

from other outpatient mental health treatment programs in the intensity

of the program, the frequency of participation, and the patient's need

for a comprehensive structured program of services. Upon discharge from

a partial hospitalization program, a patient's symptoms and level of

functioning will have stabilized to the point that the intensity of a

partial hospitalization program is no longer necessary. We are

concerned that providing a per diem payment for partial hospitalization

services may discourage timely discharge. For this reason, medical

review by fiscal intermediaries will continue to focus on patients'

initial and continued eligibility for partial hospitalization services.

As noted previously, once we have complete encounter data on which

to base the per diem partial hospitalization rate, the per diem will

represent the median cost of services furnished on a typical day. As

such, it will not be based on the cost of each service furnished on a

particular day. Since partial hospitalization represents the most

intensive outpatient program and we will have established the median

cost of furnishing a day of partial hospitalization services, it does

not seem appropriate to pay more for other, less intensive outpatient

psychiatric programs. For this reason, we are specifically requesting

public comment on establishing a limit on routine outpatient mental

health services furnished on a given day to equal the partial

hospitalization per diem amount.

6. Comments on Specific APCs

APCs 061-064. We created separate (that is, unpackaged) groups for

various chemotherapeutic agents because we believed that some agents

had high costs that would not be recognized if those drugs were

packaged into the median cost for the chemotherapy administration. We

solicit comment on whether to package these costs into the chemotherapy

delivery codes in the final rule. We request that commenters identify

high-cost chemotherapeutic agents that would not be adequately

recognized if packaged or that may require a separate payment or higher

payment grouping.

APC 226: This group represents the facility costs for making custom

maxillofacial prosthetics. There are few claims, and the median cost is

very low compared to the practice expenses associated with these claims

on the Medicare physician fee schedule. We assume poor coding accounts

for the anomalous cost. However, it may be that these services are not

performed in hospital outpatient departments; they may actually be

performed by maxillofacial surgeons in their offices or by dental

laboratories. We welcome comments on whether these services are

actually provided in the outpatient hospital setting and the resources

involved.

APC 317 (Cochlear device implantation): The few claims in our

database for this procedure have such disparate costs that we are

uncertain of the appropriate assignment of the surgery. The device is

paid for from the DMEPOS fee schedule. We solicit comments on whether

the implant procedure itself resembles procedures in another APC group

to which it could be appropriately assigned.

APCs with a status indicator of ``V'': The groups that represent

medical visits in clinics and emergency departments are based on a

matrix, with intensity represented by six levels of CPT codes combined

with 20 categories of ICD-9 codes indicating diagnosis or condition.

Although current instructions require hospitals to use a CPT code to

bill for medical visits, we permit hospitals to bill for all medical

visits under a single code (99201) unless a hospital chooses to be more

specific. In 1997, our data show code 99201 accounting for 22 percent

of all medical visits billed, which we surmise is an overstatement of

the incidence of the lowest level clinic visit. With the implementation

of the hospital outpatient PPS, we will require hospitals to begin

coding medical visits with greater specificity. As a result, we expect

to see an increase in the relative incidence of higher level medical

visits and emergency visits and a proportional decrease in the relative

incidence of the lowest level clinic visit. We will monitor claims by

provider for unexplained increases in the total number of visits or in

the proportion of visits billed at the highest levels. Use of HCPCS

codes should conform with the CPT clinical examples of cases in each

code level.

Because the layout of the outpatient claim form does not allow a

HCPCS code to be linked to more than one ICD-9-CM code, the form

properly accounts for only one medical visit per claim. When two or

more medical visits occur on the same day for different diagnoses, a

separate claim would be created for each visit, showing the appropriate

level of CPT code and the related diagnosis. We would expect this to

occur only in those hospitals that operate many outpatient clinics

dedicated to various conditions, such as a diabetes clinic, arthritis

clinic, etc. Clinics in which a patient is seen for one or a number of

conditions by one health care professional, such as in a primary care

clinic, would bill for only one clinic visit for that encounter.

A medical visit would not be billed simply because a patient has

presented to a hospital for a service such as chemotherapy, cardiac

rehabilitation, an x-ray, etc.

We propose not to pay for a medical visit that takes place on the

same date of service as a scheduled outpatient surgery. Registration of

the patient, taking of vital signs, insertion of an IV, preparation for

surgery, etc., are packaged into and paid for as part of the APC group

to which the surgical procedure or service is classified.

In cases where a surgical procedure or service is performed as the

immediate result of an outpatient visit (such as the removal of skin

lesions following a visit to a dermatology clinic) or from an emergency

department visit, the visit would be billed with a modifier -25,

indicating that a separately identifiable evaluation and management

service was furnished.

APCs 667 and 668: These groups, for cataract surgery without and

with insertion of an IOL, should require different resources, because

667 should not include the cost of an IOL. Because the median costs of

the two groups are identical, we assume that hospitals were not

correctly coding some cases. Therefore, we have reduced the median cost

of 667 by $200 to reflect the resources associated with an IOL. We

arrived at this figure by allowing the $150 that was allowed for an IOL

as the ASC portion of the blended amount formerly paid, and by assuming

that the recognition of hospitals' costs under the blend would result

in the hospital IOL ``allowance'' being higher than the ASC's. This

reduction will have a very small overall effect, because the services

in APC 668 were billed more than 225 times as often as those in APC

667. This also leads us to believe that the data we have for the

services in APC 668 are more likely to represent accurate information.

APC 670: This group packages payment for the acquisition costs of

corneal tissue with the payment for the corneal transplant surgery. It

has been brought to our attention that the costs of acquiring corneal

tissue vary widely from one locality to another, so that packaging may

not be a reasonable way to handle these costs. We are specifically

soliciting comments on the issue of packaging corneal tissue costs. We

are also soliciting suggestions for alternate ways to pay for corneal

tissue, if the comments and supporting data we

[[Page 47570]]

receive indicate that packaging is not an appropriate way to treat

these costs.

APCs 761 and 762, and 791 and 792: These groups are anomalous,

because the group entitled ``Complex'' in each case has a lower weight

than the one entitled ``Standard.'' This has to do with the cost of the

procedure itself compared to the cost of the radionuclide involved. We

are working with the Society for Nuclear Medicine to correct these

anomalies.

APCs 902 and 903: We had very few bills for the vaccines in these

groups (902 includes polio vaccine and DPT; 903 includes vaccines for

rabies and plague). We are considering combining the two groups. We

solicit comments on vaccine costs to supplement our data.

APCs 091 and 91191: Brief psychotherapy encounters can be

identified by either a CPT code (as in APC 091) or a low- or mid-level

visit with a psychiatric diagnosis (APC 91191). We determined the

median costs for these bills taken together, because we believe that

there are no differences in the facility resources used in these

instances. In the case of other psychiatric encounters, we believe that

clinic services at the highest level should be the equivalent of an

extended psychotherapy encounter. Mid- and high-level emergency room

encounters should be billed by evaluation and management CPT codes and

psychiatric diagnoses.

APC 921: Although the addenda refer to this APC, in fact diabetic

education services will be paid under the physician fee schedule, which

will establish rates for one-on-one sessions and group sessions. The

addenda will be corrected in the final rule. (A proposed rule titled

``Medicare Program; Expanded Coverage for Diabetes Outpatient Self-

Management Training Services'' is under development.)

APCs 981 and 982: These groups represent nerve and muscle tests. We

are continuing to evaluate whether these two groups should be combined

in the final rule, because there is very little distinction between

them in our cost data.

We are still examining ways to pay for drugs outside the composite

rate for ESRD patients, and the services to be paid under our system in

CORFs, HHAs, and hospices. These will be APCs, based on services that

are packaged in our system.

7. Discounting of Surgical Procedures

Under hospital outpatient PPS, we will discount payment amounts

when more than one procedure is performed during a single operative

session or when a surgical procedure is terminated prior to completion.

The discount policy explained below is consistent with Medicare policy

and regulations governing payment for physician and ASC surgical

services.

a. Reduced Payment for Multiple Procedures

When more than one surgical procedure (defined as those HCPCS codes

in APC groups with status ``T'') is performed during a single operative

session, we propose that the full Medicare payment amount and

beneficiary copayment amount would be paid for the procedure having the

highest APC payment rate. Fifty percent of the normal Medicare payment

amount and beneficiary copayment amount would be paid for all other

procedures performed during the same operative session to reflect the

savings associated with having to prepare the patient only once and the

incremental costs associated with anesthesia, operating and recovery

room use, and other services required for the second and subsequent

procedures.

b. Discounted Payment for Terminated Procedures

Under outpatient PPS, the hospital will use modifiers to indicate

procedures that are terminated prior to completion. Modifier-52

(Reduced Services) is used to identify a procedure that is terminated

after the patient has been prepared for surgery, including sedation

when provided, and taken to the room where the procedure is to be

performed, but before anesthesia is induced (for example, local,

regional block(s), or general anesthesia). Fifty percent of the normal

Medicare payment amount and beneficiary copayment amount would be paid

for a procedure terminated before anesthesia is induced.

Modifier-53 (Discontinued Procedure) is used to indicate that a

surgical procedure was started but discontinued after the induction of

anesthesia (for example, local, regional block, or general anesthesia),

or after the procedure was started (incision made, intubation begun,

scope inserted) due to extenuating circumstances or circumstances that

threatened the well-being of the patient. To recognize the costs

incurred by the hospital to prepare the patient for surgery and the

resources expended in the operating room and recovery room, the full

Medicare payment amount and beneficiary copayment amount would be paid

for a procedure that was started but discontinued after the induction

of anesthesia or after the procedure was started, as indicated by a

modifier-53.

The elective cancellation of procedures would not be reported. If

multiple procedures were planned, only the procedure actually initiated

would be billed. A pattern of canceled procedures will prompt medical

review of the reasons for cancellation and may trigger review of the

appropriateness of patient selection for outpatient surgery.

8. Inpatient Care

In recent years, the distinction between inpatient and outpatient

care has been blurred by the retention of outpatients in the hospital

overnight, sometimes for many days in a row. Medicare paid for

observation services while the hospital determined whether an

outpatient needed admission for further treatment. Frequently, the

patients did not understand that they were not inpatients until they

were billed for 20 percent of outpatient charges as copayment. In

November 1996, we put in place a policy limiting outpatient observation

services to a maximum of 48 hours. We made clear at that time that

observation was not a means to make it possible to perform inpatient

surgery on an outpatient basis, nor was it appropriate to retain

chemotherapy patients in long-term observation. Because observation is

not provided as the sole service a patient receives, we packaged costs

associated with observation into the median costs for the services, for

example, surgery or chemotherapy, with which they were furnished in

1996.

There are procedures that, by their nature, require inpatient care.

Open abdominal surgery requires a postoperative recovery period, for

example, to ensure that bowel function resumes. Certain major surgeries

require monitoring in an intensive care unit until the patient's

neurological or other function returns. Yet other surgeries involve

large or delicate surgical wounds that require monitoring, skilled

dressing changes, and fluid replacement. These procedures obviously

require inpatient care, and performing them on an outpatient basis

would clearly jeopardize patient health and safety. Other procedures

are not as clearly defined as inpatient, but we have classified them as

inpatient because they are performed on an inpatient basis virtually

all the time for the Medicare population, either because of the

invasive nature of the procedures, the need for postoperative care, or

the underlying physical condition of the patient who would require such

surgery. These procedures are not classified in an outpatient APC

group, and no payment is provided for these procedures under the

hospital

[[Page 47571]]

outpatient PPS. We will deny payment for claims that are submitted for

these procedures furnished as outpatient services because performing

these procedures on an outpatient basis is not safe or appropriate, and

therefore not reasonable and necessary under Medicare rules. Because we

base these denials on the exclusion in section 1862(a)(1)(A) of the Act

and in Sec. 411.15(k)(1), beneficiaries may be protected from liability

by the limitation on liability provision of section 1879 of the Act.

The procedures that we consider appropriate and safe only in an

inpatient setting and for which we are excluding payment under the

hospital outpatient PPS are listed in Addendum H to enable hospitals to

make appropriate site of care decisions. This list represents national

Medicare policy and is binding on fiscal intermediaries and peer review

organizations, as well as on hospitals and Medicare participating ASCs.

We acknowledge that we have classified in outpatient APC groups

some procedures that may seem closely related to procedures that we are

excluding from the outpatient PPS on the basis of their status as

inpatient procedures. We expect that when the former are performed in

the outpatient setting, they will be only the simplest, least intense

cases. The fact that a service is included in an APC group under the

hospital outpatient PPS should not be construed to mean that the

procedure may only be performed in an outpatient setting. In every

case, we expect the surgeon and the hospital to assess the risk to the

individual patient and to act in that patient's best interests.

C. Calculation of Group Weights and Rates

1. Group Weights

Section 1833(t)(2)(C) of the Act requires the Secretary to develop

relative payment weights for covered groups of hospital outpatient

services. The statute requires that such weights be developed using

1996 hospital outpatient claims and the most recent available hospital

cost reports. We are required to base these weights on median hospital

costs. In constructing the database to model the outpatient PPS

proposal, we used a universe of approximately 98 million calendar year

1996 final action claims for hospital outpatient department services

received through June 1997 to match to the most recent hospital cost

reports available.

To derive weights based on median hospital costs for services in

the hospital outpatient APC groups, we needed to convert billed charges

to costs and aggregate them to the procedure or visit level. To do

this, we first identified the cost-to-charge ratio that was specific to

each hospital's cost centers (``cost center specific cost-to-charge

ratios'' or CCRs). We then developed a crosswalk to match the

hospital's CCRs to revenue centers used on the hospital's 1996

outpatient bills. The CCRs included operating and capital costs but

excluded costs associated with direct graduate medical education and

allied health education. (Medicare payment for direct graduate medical

education is made as a pass-through under the inpatient PPS and

includes the costs associated with approved educational activities for

residents assigned to the hospital's outpatient department. We discuss

in elsewhere in this proposed rule how we would make payment for allied

health education.)

Our next task was to identify each hospital's most recent available

cost report from which to determine the hospital's CCRs. Because there

is generally a 2-year lag between claims adjudication and cost report

filing, the most recent cost reports that we could expect to be

available to associate with calendar year 1996 claims were those from

PPS-12 (cost reporting periods beginning on or after October 1, 1994

and before October 1, 1995). We searched the PPS-12 period first to

match the 1996 final action claims to a cost report. If we achieved a

match, no other action was needed. However, if no match was found, we

next searched for a cost report in the PPS-11 period and subsequently

in the PPS-10 period, if necessary.

If the most recent available cost report that we used for a

provider was one that had been submitted but not settled, we calculated

an adjustment factor to adjust for the differences that exist between

settled and ``as submitted'' cost reports. We determined the adjustment

factor by dividing the outpatient department cost-to-charge ratio from

the hospital's most recent settled cost report by the outpatient

department cost-to-charge ratio from the hospital's ``as submitted''

cost report for the same period. We used the resulting ratio to adjust

each of the CCRs in the hospital's most recent ``as submitted'' cost

report. We repeated this process for every hospital for which the most

recent available cost report was a cost report that had not been

settled.

The Office of Inspector General (OIG) is concerned that the cost

reports we are using may reflect some unallowable costs. Therefore, the

OIG, in conjunction with HCFA, is proposing to examine the extent to

which the cost reports used reflect costs that were inappropriately

allowed. If this examination reveals excessive inappropriate costs, we

would address this issue in a future proposed rule, or perhaps seek

legislation to adjust future payment rates downward.

When this process was completed, we were able to match revenue

centers from approximately 83 million claims to CCRs of approximately

5,600 hospitals. We excluded from the crosswalk approximately 15

million claims in which the bill type denoted services that would not

be covered under the PPS, for example, bill type 72X for dialysis

services for patients with ESRD. The table below shows the three cost

reporting periods we used and the percentage of the cost reports within

each PPS period with which we were able to match 1996 claims. The most

recent cost reports available to us were from the hospital inpatient

PPS-12 period, and 95.8 percent of the most recent cost reports

available to us matched the 1996 claims that we are required to use as

the basis for establishing relative payment weights for the APC groups

in the outpatient PPS.

------------------------------------------------------------------------

Percentage

of cost

Reporting period reports

matched

------------------------------------------------------------------------

PPS-12 (cost reporting period beginning on or after 10/1/94

and before 10/1/95)........................................ 95.8

PPS-11 (cost reporting period beginning on or after 10/1/93

and before 10/1/94)........................................ 3.7

PPS-10 (cost reporting period beginning on or after 10/1/92

and before 10/1/93)........................................ 0.5

-----------

100.0

------------------------------------------------------------------------

We next separated the estimated 83 million claims that we had

matched with a cost report into two distinct groups: single-procedure

claims and multiple-procedure claims. Single-procedure claims are those

for which the HCPCS to be grouped to an APC is the only code that

appears on the bill, other than laboratory and incidentals such as

venipuncture. Multi-procedure claims included more than one HCPCS code

that could be mapped to an APC. There were approximately 37 million

single-procedure claims and 46 million multiple-procedure claims.

To calculate median costs for services within an APC, we used only

the single-procedure bills. (Of the roughly 37 million single-procedure

claims, about 11 million were excluded from the conversion process

largely because the only HCPCS codes reported on the claims were for

laboratory procedures.)

[[Page 47572]]

This approach was taken because of our inability to specifically

allocate charges or costs for packaged items and services such as

anesthesia, recovery room, drugs, or supplies to a particular procedure

when more than one significant procedure or medical visit was billed on

a claim. Use of the single-procedure bills minimizes the risk of

improperly assigning costs to the wrong procedure or visit. Although

single-procedure/visit bills were used for determining APC relative

payment weights, the multiple-procedure bills were used in the service

mix calculations, regressions, and impact analyses.

For each single-procedure claim, we calculated a cost for every

billed line item charge by multiplying each revenue center charge by

the appropriate hospital-specific CCR. If the appropriate cost center

did not exist for a given hospital, we crosswalked the revenue center

to a secondary cost center when possible, or to the hospital's overall

cost-to-charge ratio for outpatient department services. We excluded

from this calculation all charges associated with HCPCS codes

previously defined as noncovered under this PPS, for example,

laboratory, ambulance, and therapy services.

To calculate the per-procedure or per-visit costs, we used the

charges shown in the revenue centers that contained items integral to

performing the procedure or visit. These included those items that we

previously discussed as being subject to our proposed packaging

provision. For example, in calculating the surgical procedure cost, we

included charges for the operating room, treatment rooms, recovery,

observation, medical and surgical supplies, blood, pharmacy,

anesthesia, cast and splints, and donor tissue, bone, and organ. For

medical visit cost estimates, we included charges for items such as

medical and surgical supplies, drugs, observation, and blood. A

complete listing of the revenue centers we used is included elsewhere

in this preamble.

To standardize costs for geographic wage variation, we divided the

labor-related portion of the operating and capital costs for each

billed item by the hospital inpatient prospective payment system wage

index published in the Federal Register on May 8, 1998 (63 FR 25575).

We used 60 percent to represent our estimate of that portion of costs

attributable, on average, to labor, but this factor is sensitive to

other payment adjustments. Therefore, we will restandardize costs in

the final rule using FY 1999 hospital inpatient PPS wage index values

and the final labor market share value. A more detailed discussion of

wage index adjustments is found below (section V.E. of this document).

We then added the standardized labor-related cost to the non-labor-

related cost component for each billed item to derive the total

standardized cost for each procedure or medical visit. We trimmed

standardized procedure and visit costs to remove extremely unusual

costs that appeared to be errors in the data. The trimming methodology

is analogous to that used in calculating the DRG weights for the

inpatient PPS: any bills with costs outside of 3 standard deviations

from the geometric mean were eliminated. The geometric mean and the

associated standard deviation are used because the distribution of

costs more closely resembles a lognormal distribution than a normal

distribution: there are no negative costs, and the average cost is

greater than the median cost. Using the geometric mean has the effect

of minimizing the impact of the most unusual bills in the determination

of the mean. The geometric mean is calculated by taking the mean of the

natural logarithm cost. Since the distribution of the natural

logarithms of a set of numbers is more compact than the distribution of

the numbers themselves, bills with extreme costs do not appear as

extreme as they would if non-logged costs were examined. This ensures

that only the most unusual data will be removed from the calculation.

After we trimmed the procedure and visit level costs, we mapped

each procedure or visit cost to its assigned APC. We calculated the

median cost for each APC weighted by procedure volume.

Using these median APC costs, we then calculated the relative

payment weights for each APC. We decided to scale all the relative

payment weights to APC 91336, a mid-level clinic visit for

cardiovascular services because it is one of the most frequently

performed services. This approach is consistent with that used in

developing relative value units for the Medicare physician fee

schedule. By assigning APC 91336 a relative payment weight of ``1.0,''

hospitals can easily compare the relative relationship of one APC to

another. Next, we divided the median cost for each APC by the median

cost for APC 91336 to derive the relative payment weight for each APC.

2. Conversion Factor

Section 1833(t)(3)(C)(i) of the Act requires that we establish a

conversion factor for 1999 to determine the Medicare amounts for each

covered group of services. The statute mandates that the conversion

factor be established on the basis of the weights and aggregate

projected utilization for 1999 and based on the base amount of payments

described in section 1833(t)(3)(A) of the Act. Such base amount is

calculated for the services included in the outpatient PPS, as an

estimate of the sum of (1) total payments that would be payable from

the Trust Fund under the current (non-PPS) payment system in 1999 plus

(2) the beneficiary copayments that would have been made under the new

(PPS) system in 1999. Section 1833(t)(3)(C)(ii) of the Act further

requires that the Medicare amount take into account all appropriate

adjustments.

Although section 1833(t)(2)(C) of the Act requires us to project

utilization for hospital outpatient services, we were unable to project

precisely increases in the volume and intensity of services because we

were not able to quantify some of the factors that affect utilization.

For instance, we would anticipate that Medicare beneficiaries that

choose to migrate to managed care plans may be healthier than those who

choose to stay in fee-for-service plans. Thus, we could assume a

decrease in the volume of services but an increase in the intensity of

services furnished for Medicare beneficiaries enrolled in fee-for-

service plans. Another fact

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Medicare Program; Prospective Payment System for Hospital Outpatient Services · 63 FR 47552 | Frix