# WAC 182-531A-0900: WAC 182-531A-0900. Applied behavior analysis (ABA) — Covered services

> Washington · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0900

## Section

- **Citation:** WAC 182-531A-0900
- **Heading:** WAC 182-531A-0900. Applied behavior analysis (ABA) — Covered services
- **Jurisdiction:** Washington
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Washington Administrative Code / Title 182 / Chapter 182-531A / Section 182-531A-0900

## Text

(1) The medicaid agency covers only the following applied behavior analysis (ABA) services, delivered in settings described in WAC 182-531A-0600 , for eligible clients:
(a) The ABA assessments that determine the relationship between environmental events and the client's behaviors;
(b) The direct provision of ABA services by the therapy assistant (TA) or lead behavior analysis therapist (LBAT);
(c) Initial ABA assessment and development of a written, initial ABA therapy treatment plan, limited to one per year;
(d) Up to four additional ABA assessments and revisions of the initial ABA therapy treatment plan per year, if necessary to meet client's needs;
(e) One lifetime authorization of day treatment services. If a provider's request for covered services exceeds limitations in this section, the agency evaluates the request under WAC 182-501-0169 .
(f) Supervision of the TA;
(g) Training and evaluation of family members or caregivers to carry out the approved ABA therapy treatment plans;
(h) Observation of the client's behavior to determine the effectiveness of the approved ABA therapy treatment plan; and
(i) On-site assistance in the event of a crisis.
(2) The agency covers the following services, which may be provided in conjunction with ABA services under other agency programs:
(a) Counseling;
(b) Dietician services;
(c) Interpreter services;
(d) Occupational therapy;
(e) Physical therapy;
(f) Speech and language therapy; and
(g) Transportation services.
(3) The agency does not pay for ABA services:
(a) That duplicate services provided in another setting; or
(b) That are provided by a family member.
(4) If a provider's request for covered services exceeds limitations in this section, the agency evaluates the request under WAC 182-501-0169 .
(5) For clients age 20 and younger, see the early periodic screening, diagnosis, and treatment (EPSDT) program described in chapter 182-534 WAC.

## Nearby sections

- [WAC 182-531A-0100 WAC 182-531A-0100. Applied behavior analysis (ABA) — Purpose](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0100.md)
- [WAC 182-531A-0200 WAC 182-531A-0200. Applied behavior analysis (ABA) — Definitions](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0200.md)
- [WAC 182-531A-0300 WAC 182-531A-0300. Applied behavior analysis (ABA) — Threshold requirements](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0300.md)
- [WAC 182-531A-0400 WAC 182-531A-0400. Applied behavior analysis (ABA) — Client eligibility](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0400.md)
- [WAC 182-531A-0500 WAC 182-531A-0500. Applied behavior analysis (ABA) — Stage one: COE evaluation and prescription](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0500.md)
- [WAC 182-531A-0600 WAC 182-531A-0600. Applied behavior analysis (ABA) — Stage two: Functional assessment and treatment plan development](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0600.md)
- [WAC 182-531A-0700 WAC 182-531A-0700. Applied behavior analysis (ABA) — Stage three: Delivery of ABA services](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0700.md)
- [WAC 182-531A-0800 WAC 182-531A-0800. Applied behavior analysis (ABA) — Provider requirements](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0800.md)
- [WAC 182-531A-0900 WAC 182-531A-0900. Applied behavior analysis (ABA) — Covered services](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0900.md)
- [WAC 182-531A-1000 WAC 182-531A-1000. Applied behavior analysis (ABA) — Noncovered services](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_1000.md)
- [WAC 182-531A-1100 WAC 182-531A-1100. Applied behavior analysis (ABA) — Prior authorization and recertification of ABA services](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_1100.md)
- [WAC 182-531A-1200 WAC 182-531A-1200. Applied behavior analysis (ABA) — Services provided via telemedicine](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_1200.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_182_531A_0900. Check the current official text before relying on it. Not legal advice.