The Direct Answer

Quick Answer

Insurance does not set a blanket hour limit for ABA therapy. Approved hours are determined by a functional behavior assessment conducted by a BCBA, and typically range from 10 to 40 hours per week depending on the child's needs. Most insurance plans cover medically necessary ABA therapy for children with an autism diagnosis under state and federal parity laws.

If you've been trying to figure out "the number" that insurance will approve before your child's assessment has even been completed, the short answer is: there isn't one. Insurance companies evaluate ABA therapy requests based on clinical documentation submitted by your provider — not based on a pre-set schedule or a maximum cap.

That said, insurance companies do have internal review criteria they apply when evaluating ABA authorizations, and understanding those criteria can help you navigate the process more effectively.

How the Insurance Authorization Process Works

Before ABA therapy can begin, your BCBA will conduct a comprehensive initial assessment. This assessment evaluates your child's current skill levels, adaptive behavior, communication, social skills, and any challenging behaviors. It typically takes 2–5 sessions to complete. Based on the assessment results, the BCBA writes a detailed treatment plan that includes:

The provider submits this treatment plan to your insurance company as part of a prior authorization request. A clinical reviewer at the insurance company — often a BCBA or psychologist on staff — reviews the documentation and makes an authorization decision. This process can take anywhere from a few days to several weeks, depending on the insurance company and whether additional documentation is requested.

Tip: Confirm prior authorization before starting therapy

Never begin ABA therapy without confirmed prior authorization in writing. Verbal approvals from insurance representatives are not binding. Ask your provider to obtain written authorization with specific approved start dates, hour limits, and authorization numbers before your child's first session.

What Insurance Actually Evaluates When Approving Hours

Insurance clinical reviewers evaluate ABA authorization requests against "medical necessity" criteria. The specific criteria vary by insurance plan, but most assessments look at:

Insurance companies are generally required by law to cover ABA therapy when it is medically necessary for a child with autism. Federal mental health parity law and state autism mandates in New York, New Jersey, and North Carolina all require that behavioral health benefits — including ABA — be covered on par with other medical benefits. However, insurance companies can and do question whether a specific intensity level is medically necessary, which is where documentation quality matters most.

What Happens When Insurance Approves Fewer Hours Than Recommended

It's common for insurance to initially authorize fewer hours than your BCBA recommended. This doesn't necessarily mean the case is closed. Your provider has several options:

  1. Request a peer-to-peer review. Your BCBA can request a direct conversation with the insurance company's clinical reviewer to explain the clinical rationale. This step alone resolves many partial authorizations.
  2. Submit a formal appeal. If the peer-to-peer review doesn't resolve the issue, your provider can submit a written appeal with additional clinical documentation. First-level appeals resolve a significant percentage of disputes.
  3. Request an independent external review. In New York, New Jersey, and North Carolina, you have the right to request an external review by an independent clinical organization if your appeal is denied. External reviewers frequently overturn insurance denials for ABA therapy.
  4. File a complaint with the state insurance commissioner. If you believe the insurance company is not complying with parity laws or state autism mandates, a formal complaint with your state's department of insurance can trigger a review.

Navigating insurance for ABA therapy is complex. Match Care ABA helps families find providers who know how to handle the authorization process in NY, NJ, and NC, free for families.

Get Matched Now

How Hours Get Reviewed Over Time

ABA authorizations are not permanent. Most insurance plans require re-authorization every 3–6 months. At each renewal, your provider submits updated progress data and a new treatment plan. Insurance will evaluate whether the current level of service remains medically necessary, whether goals have been met (which might support reducing hours), or whether new goals warrant maintaining or increasing the current intensity.

Important to know: If your child is making strong progress, insurance may propose reducing authorized hours at renewal. This isn't necessarily a bad thing — it can reflect that your child is developing skills and moving toward a less intensive phase of treatment. Your BCBA should discuss any proposed changes to intensity before agreeing to them, and should document their clinical rationale clearly.

Medicaid and ABA Hours

If your child is covered by Medicaid — including managed Medicaid plans — the authorization process works similarly, but with some differences. Medicaid in New York (including EIDBI), New Jersey, and North Carolina covers ABA therapy for children with autism, and Medicaid plans are generally required to cover medically necessary services without annual or lifetime dollar caps. The specific documentation and prior authorization requirements vary by Medicaid managed care organization, so it's important to work with a provider who has experience navigating Medicaid authorization in your state.

Match Care ABA serves families with both commercial insurance and Medicaid coverage in New York, New Jersey, and North Carolina. Our matching service is free — fill out the form below and we'll connect you with providers who have current availability and experience with your insurance plan.