States Move to Rein In ABA Medicaid Spending With Rate Cuts, Hour Caps, and Age Limits

A wave of state-level action is reshaping how applied behavior analysis is reimbursed under Medicaid. Driving it: ABA hours billed to Medicaid surged about 298% between 2019 and 2024, far outpacing the roughly 74% rise in autism prevalence over a comparable period.

What states are doing

• Nebraska cut payments by nearly 50% for some ABA providers.
• Colorado and Indiana have payment reductions on the table.
• Several states are layering on new hour caps, age limits, and rate cuts to refine ABA coverage.

North Carolina is the flashpoint

ABA payments in North Carolina, about $122 million in fiscal 2022, are projected to reach roughly $639 million in fiscal 2026 — a 423% increase. A state judge recently froze a North Carolina DHHS attempt to cut autism-treatment Medicaid rates, keeping rates in place while the dispute plays out.

What you must know or do

These measures compound. A rate cut lowers what each hour earns; an hour cap lowers how many you can bill; an age limit removes part of the caseload entirely. A practice that survives any one of them can still fail all three arriving together, and they are arriving together.

Three things to know before your state moves, not after:

• What share of your revenue sits in the bands being targeted — the age ranges and weekly-hour tiers above. If you cannot answer that from your billing system this week, that is the first job.
• Which of your payers have a rate review open. Nebraska cut by nearly half. Colorado and Indiana have reductions on the table.
• Whether your medical-necessity documentation would support the intensity you bill today if a payer asked you to justify it client by client.

Watch the North Carolina injunction. A judge freezing the rate cut establishes that these decisions are contestable — and that a state losing once does not stop trying.

Reported by Governing and regional outlets.