Illinois Medicaid ABA Rates: 97153 and Every ABA Code \| StreamABA [ ![StreamABA](https://streamaba.com/build/assets/logo-dark-Bta4omRy.svg) ](/) [Home](https://streamaba.com) [Blog](https://streamaba.com/blog) [ Log in ](https://streamaba.com/login) [ Goto the Live Demo ](#get-started) [Home](https://streamaba.com) [Blog](https://streamaba.com/blog) [Log in](https://streamaba.com/login) [ Goto the Live Demo ](#get-started) ABA Medicaid rates · Illinois Illinois Medicaid *ABA rates.* ================================ Illinois Medicaid FFS (HFS) - Adaptive Behavior Support (ABS) Services. Fee-for-service rates as the state publishes them, with the source and the date we last checked it. Website Work email Goto the Live Demo Rates by code What Illinois Medicaid *pays.* ------------------------------ Published. The state publishes a fee-for-service rate for these codes. Code Modifier / provider tier Unit Rate 97151 Behavior identification assessment (QHP) Level 1 (BCBA or ABS Certified Developmental Clinician) Daily max 8 units ($163.12); PA if >6 hours 1/4 hr $20.39 97152 Supporting assessment (technician) Level 2 (RBT or Developmental Technician) Daily max 8 units ($104.00); PA if >6 hours 1/4 hr $13.00 97153 Adaptive behavior treatment by protocol (technician) Level 2 (RBT or Developmental Technician) Daily max 32 units ($416.00); PA required 1/4 hr $13.00 97154 Group treatment by protocol (technician) Level 2 (RBT or Developmental Technician) Daily max 12 units ($68.64) 1/4 hr $5.72 97155 Treatment with protocol modification (QHP) Level 1 (BCBA or ABS Certified Developmental Clinician) Daily max 24 units ($489.36) 1/4 hr $20.39 97156 Family treatment guidance (QHP) Level 1 (BCBA or ABS Certified Developmental Clinician) Daily max 16 units ($326.24) 1/4 hr $20.39 97157 Multiple-family group guidance (QHP) Level 1 (BCBA or ABS Certified Developmental Clinician) Daily max 16 units ($144.00) 1/4 hr $9.00 97158 Group treatment with protocol modification (QHP) Level 1 (BCBA or ABS Certified Developmental Clinician) Daily max 16 units ($144.00) 1/4 hr $9.00 0362T Supporting assessment for severe behavior (team) Team (min. 1 BCBA + 2 RBTs, or 1 Developmental Clinician + 2 DTs) · Modifier HT Daily max 8 units ($371.12) 1/4 hr $46.39 0373T Treatment for severe behavior (team) Team (min. 1 BCBA + 2 RBTs, or 1 Developmental Clinician + 2 DTs) · Modifier HT Daily max 24 units ($1,113.36) 1/4 hr $46.39 How we read this state's schedule --------------------------------- Latest posted on HFS Adaptive Behavior Support Services page (also as .xlsx). Unit price identical to the 01/26/2022 version; the 05/14/2026 update adds prior-auth column and '93' audio-only option alongside GT. GT or 93 modifier only for telehealth (97151, 97155, 97156, 97157), not a rate tier. Statewide rates. Unit recorded by HFS as '1/4 hr'. MCO rates may differ. Program Illinois Medicaid FFS (HFS) - Adaptive Behavior Support (ABS) Services Effective date 2022-01-15 Last reviewed 2026-09-30 Source [HFS Adaptive Behavior Support (ABS) Services Fee Schedule, Effective 01/15/2022, Updated 05/14/2026](https://hfs.illinois.gov/content/dam/soi/en/web/hfs/medicalproviders/medicaidreimbursement/adaptive/UpdatedABSFeeSchedule51426.pdf) National median · 97153 $15.04 per 15-min unit Illinois: $13.00 at the same tier. Across 40 states, at the technician tier or the single rate where a state has no tiers. [How we count](https://streamaba.com/tools/aba-medicaid-rates#methodology) [Compare every state](https://streamaba.com/tools/aba-medicaid-rates) Read this before you rely on a number ------------------------------------- - These are Illinois Medicaid fee-for-service rates as published by the state. They are not commercial insurance rates and not managed care plan rates. - This page is general information, not billing, coding or legal advice. - Fee schedules change, often without notice. Verify every rate with the state Medicaid agency, or with the plan you bill, before you rely on it. - CPT is a registered trademark of the American Medical Association. Code names here are our own short descriptions. Spotted a change or an error? [Tell us](https://streamaba.com/support) and we will re-check the source. 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