Regulatory Analysis · Indiana Medicaid · Effective April 1, 2026

Effective April 1, 2026, Indiana's Family and Social Services Administration cut individual ABA reimbursement rates by 6 percent under Office of Medicaid Policy and Planning bulletin BT202627, with a further 4 percent reduction scheduled for April 1, 2027. The same overhaul restricts ABA coverage to EPSDT members under age 21, imposes diagnosis-based weekly hour caps, sets a 4,000-hour lifetime limit, and makes Autism Commission on Quality accreditation a condition of IHCP enrollment. For BCBAs, RBTs, and the billing teams behind them, the operational shift is bigger than the rate cut: authorization tracking must be rebuilt around hour-bank depletion, not authorization expiry.

The number that matters: 4,000 hours

Before April 2026, an Indiana ABA authorization ended on a date. Your practice management system could see that date, alert on it, and queue the reauthorization. Under BT202627, every billed hour also permanently draws down a finite lifetime bank. A member authorized at 30 hours per week exhausts the entire benefit in roughly 2.5 years. Denial risk no longer arrives only on a calendar date you can see; it arrives on a cumulative threshold you have to compute across the member's full claims history. If your system cannot answer "how many lifetime ABA hours has this member consumed to date," you cannot see the cliff until you are billing off the edge of it.

How Indiana got here

• Nov 12, 2025

  The FSSA ABA Work Group issues its recommendations, the policy blueprint for the overhaul.

• Rulemaking

  FSSA moves the policy toward administrative code via 405 IAC rulemaking notice 20260225-IR-405260061ONA in the Indiana Register.

• Apr 1, 2026

  Bulletin BT202627 takes effect: 6% rate cut, EPSDT-only coverage, weekly and lifetime hour caps, ACQ accreditation mandate.

• Apr 1, 2027

  The scheduled second reduction lands: another 4% off individual ABA rates.

The five changes, itemized

The operator checklist

1. Build the lifetime hour ledger. Reconstruct cumulative ABA hours per member from claims history, then keep the ledger current with every remit. This is the single data asset the whole overhaul turns on.
2. Rebuild authorization alerts around depletion. Add projected bank-exhaustion dates, computed from authorized weekly intensity, alongside auth end-dates. Escalate when the projected depletion date lands inside the current treatment plan.
3. Reforecast revenue at the new fee schedule. Apply the 6% cut to the current book and model the additional 4% for April 1, 2027 now, so staffing and payer-mix decisions are made against the real numbers.
4. Audit the census for age-out risk. Flag every member approaching age 21, and put transition planning on a calendar instead of waiting for eligibility denials to announce the boundary.
5. Reconcile treatment plans against diagnosis-based weekly caps. Check requested intensity against the applicable cap before submission, and route over-cap requests through documented medical-necessity review.
6. Start ACQ accreditation immediately if unaccredited. Enrollment now depends on it, and the runway is measured in months.
7. Front-load EPSDT medical-necessity documentation. Build the exception file while the bank is healthy, so the record exists before any cap threshold is reached.

Sources