Prior authorization for ABA therapy.

What prior authorization means

Prior authorization (sometimes called "pre-auth" or "PA") is the insurance plan's approval to cover a specific service before it is provided. For ABA therapy, virtually every commercial plan and Florida Medicaid fee-for-service require prior authorization before the first billable session. The purpose from the plan's perspective is to confirm medical necessity, appropriate hours, and appropriate setting.

The typical process, step by step

1. Benefits verification. MCDS verifies benefits — eligibility, network participation, and any plan-specific requirements — so you know where you stand before care planning begins.
2. Diagnostic documentation. Most plans require an autism spectrum disorder diagnosis (or another clinically appropriate qualifying diagnosis) documented by a qualified professional. See documentation requirements for what a plan may ask for.
3. BCBA-led assessment. A Board Certified Behavior Analyst completes an assessment to build an individualized treatment plan. Read more about that on the assessments and treatment planning page.
4. Submission. MCDS submits the assessment, treatment plan, and required documentation to the plan for authorization review.
5. Authorization. The plan issues an authorization outlining approved hours, setting, and dates. Care can then begin within those parameters.
6. Re-authorization. ABA therapy is typically re-authorized on a schedule (commonly every 6 months) based on progress, continued medical necessity, and any adjustments to the plan of care.

How long it usually takes

Timelines vary by plan, but the diagnostic-plus-assessment-plus-submission process often spans several weeks. Plans are legally bound by turnaround windows for authorization decisions after a complete submission. What most often causes delay is incomplete documentation, an expired diagnostic evaluation, or a missing plan-specific form — all of which MCDS tries to head off before submission.

What if authorization is denied or reduced

Not every submission is approved on the first pass. Plans may deny, partially approve, or request additional information. MCDS supports families through peer-to-peer reviews and appeals when clinically appropriate — the assessment and treatment plan are the clinical record that supports that conversation with the plan.

Prior authorization by plan family

Prior-authorization requirements vary by plan family. Read plan-specific pages for context:

• Aetna ABA Therapy
• Cigna ABA Therapy
• Florida Blue ABA Therapy
• UnitedHealthcare ABA Therapy
• TRICARE ABA Therapy
• Florida Medicaid fee-for-service

Authorization requirements, timelines, and coverage vary by plan and by individual policy. Nothing on this page is a guarantee that a specific service, hour count, or setting will be authorized.