Does Insurance Cover ABA Therapy?
What Families Need to Know

In most cases, yes. Since 2012, all 50 U.S. states and Washington D.C. have enacted autism insurance reform laws that require many private health plans to cover ABA therapy. One important exception: self-funded employer (ERISA) plans set their own rules and are exempt from state mandates, so check directly with your plan. Federal law (the Mental Health Parity and Addiction Equity Act) also requires that plans covering mental health benefits — including autism-related services — provide coverage comparable to medical or surgical benefits.

Coverage details vary by state, plan type, and insurer, so confirming your specific benefits with your insurance company before starting services is an important first step.

Yes. Medicaid is required to cover medically necessary ABA therapy for children under 21 in all states through the Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) benefit. This means that if a child on Medicaid has a documented medical need for ABA therapy, the state Medicaid program must cover it — regardless of whether the state has a specific autism insurance mandate.

Coverage for adults varies by state Medicaid plan. Contact your state's Medicaid office or a local autism advocacy organization to understand what's available for adults in your state.

Most insurers require at minimum:

1. A formal autism diagnosis — from a licensed psychologist, developmental pediatrician, or physician, documenting that your child meets diagnostic criteria for autism spectrum disorder (ASD).

2. A physician referral or prescription — recommending ABA therapy as part of your child's treatment plan.

3. A treatment plan from a BCBA — a Board Certified Behavior Analyst conducts a functional assessment and writes a plan outlining goals, recommended hours, and methods.

4. A prior authorization request — submitted by the ABA provider to your insurer before services begin.

Some plans also require periodic re-authorizations (every 6–12 months) to continue coverage. Ask your insurer for their specific requirements before scheduling any assessment.

A prior authorization (PA) is advance approval from your insurance company before ABA therapy can begin. Your ABA provider — typically the supervising BCBA — submits a treatment plan to the insurer documenting why ABA therapy is medically necessary for your child. The insurer reviews it and either approves, denies, or requests more information.

Most ABA clinics and agencies are experienced with this process and handle it on behalf of families. Prior authorization usually needs to be renewed every 6 to 12 months. Keep copies of all approvals and correspondence from your insurer.

You have the right to appeal. When a claim or prior authorization is denied, your insurer must provide a written reason for the denial. Steps to take:

1. Request the denial in writing if you haven't received it. Understand the stated reason (e.g., "not medically necessary," "out-of-network," "benefit excluded").

2. Ask your BCBA and your child's physician to write detailed letters of medical necessity that directly address the denial reason.

3. File a formal internal appeal with your insurer by the deadline stated in the denial letter.

4. Request an external review if the internal appeal fails — most states allow an independent third-party review of the decision.

Many denials are reversed on appeal, especially when thorough clinical documentation is provided. Patient advocacy organizations and healthcare attorneys can help with complex cases.

Coverage varies significantly by plan and state. Some policies cover up to 40 hours per week when medically necessary; others set lower caps or require a step-down in intensity over time as goals are met.

The number of hours approved is typically based on your child's individualized treatment plan. A BCBA recommends hours based on the child's needs and goals, and the insurer reviews whether the recommendation meets their medical necessity criteria. If you feel the approved hours are insufficient, you can appeal with supporting clinical documentation from the treating BCBA.

Without insurance, ABA therapy typically costs between $120 and $250 per hour depending on the provider, location, and type of services. Comprehensive programs (25–40 hours per week) can represent a significant annual expense.

Some options that may help offset costs for uninsured or underinsured families:

HSA or FSA funds — ABA therapy is an eligible medical expense for Health Savings Accounts and Flexible Spending Accounts.

Medicaid waiver programs — many states offer home and community-based waiver programs for children with developmental disabilities who don't qualify for standard Medicaid but whose families have limited financial means.

State and local grants — autism advocacy organizations at the state and local level sometimes offer funding or can connect families with resources. Your state's autism society chapter is a good starting point.

Call the member services number on the back of your insurance card and ask specifically: "Does my plan cover Applied Behavior Analysis (ABA) therapy for autism under CPT codes 97151 through 97158?" Note the representative's name and the reference number for the call.

Ask: what documentation is required for prior authorization, whether there are in-network ABA providers in your area, and whether there are any annual limits or visit caps.

Then contact an ABA provider — most clinics are experienced with the insurance process and can confirm your benefits, guide you through pre-authorization, and handle the paperwork before your child's first appointment.