Does Insurance Cover ABA Therapy in Indiana?

How to find out if your Indiana plan pays for ABA, what to ask HR, and what to do if denied.

State coverageAugust 2, 2026

Why two coworkers get different answers

Indiana has a state autism insurance mandate, but it only binds fully insured plans. Those are plans where the employer buys coverage from an insurance company and the state regulates it.

Many large employers use self-funded plans instead. The employer pays claims directly and the plan falls under federal ERISA rules, so the state mandate does not apply. That is why one family at a company gets ABA covered and another does not, even though they work for the same employer.

Self-funded plans are not required to cover ABA, but many choose to anyway. The only way to know is to ask.

The exact question to ask HR

Ask HR: Is our health plan fully insured or self-funded? That one answer tells you whether the state mandate applies.

If HR does not know, ask for the plan's Summary Plan Description, or SPD. The SPD is the legal document that explains what the plan covers. Ask for the section on behavioral health or autism treatment.

Also ask: Does the plan cover applied behavior analysis for autism? If yes, ask for the specific requirements, such as prior authorization, in-network providers, or a referral from a doctor.

What to ask your insurance company

Call the number on your insurance card and ask these questions in this order:

List:

Is applied behavior analysis a covered benefit under my plan?

Do I need prior authorization? If so, what is the process and how long does it take?

Are there limits on the number of hours or visits per year? If so, what are they?

Do I need a referral from a primary care doctor or a diagnosis from a specific type of provider?

Is there a separate deductible or out-of-pocket maximum for ABA, or does it apply to my overall plan?

What prior authorization needs

Most plans require prior authorization before ABA starts. That means the provider sends the insurance company a treatment plan before you begin services.

Typically, the provider needs: a formal autism diagnosis, a prescription or referral from a doctor, a treatment plan with goals and estimated hours, and sometimes a psychological or developmental evaluation.

Ask the ABA agency if they handle the prior authorization. Most do, but confirm before you sign anything. Ask how long the authorization takes, because some plans take 2 to 4 weeks.

What to do on a denial

If your claim is denied, you have the right to appeal. The denial letter must explain the reason and the deadline to appeal, usually 180 days from the date of the letter.

First, call the insurance company and ask for a peer-to-peer review. That is a conversation between your doctor and the insurance company's medical director. Your doctor can explain why ABA is medically necessary.

If that fails, file a formal appeal in writing. Include a letter from your doctor, the treatment plan, and any supporting evaluations. Keep copies of everything.

If you have a fully insured plan, you can also contact the Indiana Department of Insurance for help. For self-funded plans, you can file a complaint with the U.S. Department of Labor's Employee Benefits Security Administration.

If you have Medicaid or IHCP

Indiana Health Coverage Programs, or IHCP, is the state's Medicaid program. If you qualify, it covers medically necessary ABA for children under 21 through the Early and Periodic Screening, Diagnostic and Treatment benefit.

You do not need to meet a private plan's deductible. But you do need to use a provider who accepts IHCP and is in your managed care plan's network. The plan name is on your member card.

Contact your managed care plan to ask about ABA coverage and how to get a referral. If you are not sure if you qualify, apply through the state's benefits portal or contact your local Division of Family Resources office.

Indiana listings right now

326 ABA agencies across 45 Indiana counties.

Common questions

Does Indiana require insurance to cover ABA therapy?

Indiana has a state autism mandate that requires fully insured plans to cover ABA. But self-funded employer plans are exempt under federal ERISA, so they are not bound by the state mandate. Many self-funded plans still cover ABA, but it is not guaranteed.

How do I know if my plan is fully insured or self-funded?

Ask your HR department directly. They should know. You can also look at your Summary Plan Description, which states the plan type. If HR does not know, ask for the plan administrator's contact information and call them.

What if my insurance denies ABA therapy?

You can appeal. Start by asking for a peer-to-peer review between your doctor and the insurance company's medical director. Then file a formal written appeal with supporting documents from your doctor. For fully insured plans, you can also contact the Indiana Department of Insurance. For self-funded plans, contact the U.S. Department of Labor.

Does Medicaid cover ABA in Indiana?

Yes, Indiana Health Coverage Programs covers medically necessary ABA for children under 21 through the EPSDT benefit. You must use a provider who accepts IHCP and is in your managed care plan's network. The plan name is on your member card.

Are there limits on ABA hours in Indiana?

Limits vary by plan. Some plans cap hours per week or per year, others do not. The state mandate does not specify a fixed limit, so you need to ask your insurance company directly. Ask: Are there limits on ABA hours or visits? If so, what are they?

What documents do I need for prior authorization?

Usually a formal autism diagnosis, a prescription or referral from a doctor, a treatment plan with goals and estimated hours, and sometimes a psychological evaluation. The ABA agency typically handles the prior authorization, but confirm with them and ask how long it will take.