Medicaid ABA Coverage in Colorado

Health First Colorado covers ABA for kids under 21. Here's how to qualify and start.

State coverageAugust 2, 2026

What Health First Colorado Covers

Health First Colorado, Colorado's Medicaid program, covers applied behavior analysis (ABA) for enrollees under 21 when it's medically necessary. This comes through the federal Early and Periodic Screening, Diagnostic and Treatment (EPSDT) benefit, which requires states to cover all medically necessary services for kids on Medicaid.

In practice, that means your child's ABA sessions, parent training, and behavior assessments are typically covered if a doctor or qualified professional says they're needed. There's no set cap on visits or hours under EPSDT, but your managed care plan will review what's requested and approve what's medically necessary.

Who Qualifies for ABA

To get ABA through Health First Colorado, your child must be under 21 and enrolled in Medicaid. You'll also need a formal diagnosis of autism spectrum disorder from a qualified professional, like a developmental pediatrician, child psychologist, or psychiatrist.

Beyond the diagnosis, your ABA provider will need to create a treatment plan that shows why ABA is medically necessary. That plan typically includes specific goals, the number of hours per week recommended, and how progress will be measured. Your Medicaid plan uses this to decide what to approve.

How Prior Authorization Works

ABA isn't something you can just start. Your provider must get prior authorization from your managed care plan before services begin. The plan reviews the diagnosis, the treatment plan, and the recommended hours, then approves a set number of hours for a specific period, usually 6 or 12 months.

Your ABA agency usually handles the paperwork. They'll submit the treatment plan and any supporting documents to your Medicaid plan. You can help by making sure your child's diagnosis is current and that you have a copy of your member ID card, since the plan name is printed on it.

If the plan denies or reduces the hours, you have the right to appeal. Ask your provider for help with the appeal, and contact your Medicaid plan's member services line for the exact steps and deadlines.

What to Do When a Provider's Panel Is Closed

A common hurdle is finding an ABA agency that's accepting new Medicaid patients. Many agencies have waitlists or close their panels when they're full. If that happens, don't give up.

First, ask the agency if they have a waitlist and how long it typically is. Some agencies keep a list and call families when a spot opens. Second, contact your Medicaid plan's member services and ask for a list of in-network ABA providers. They can also help you find one that's currently accepting new clients.

If you're still stuck, ask your child's pediatrician or a local autism support group for recommendations. Sometimes smaller agencies have openings even when the big ones don't.

What to Ask Your Medicaid Plan

Before you start, call your Medicaid plan and ask these exact questions: 'Does my child's plan cover ABA under EPSDT?' and 'What is the prior authorization process for ABA?' This gets you the most accurate, current info for your specific plan.

Also ask: 'Are there any limits on hours or visits per year?' and 'What do I do if my provider is out of network?' Even though EPSDT requires medically necessary coverage, your plan may have specific rules about how you access it.

A Note on Employer Plans

If your child is on a private employer plan, not Medicaid, the rules are different. Colorado's state mandate requires ABA coverage, but it only applies to fully insured plans. Self-funded employer plans are exempt under federal ERISA law, though many still cover ABA voluntarily.

If you're using an employer plan, check your benefits booklet or call the number on your insurance card. Ask specifically if ABA is covered and if there are any limits. Don't assume the state mandate applies to your plan.

Colorado listings right now

932 ABA agencies across 40 Colorado counties.

Common questions

Does Health First Colorado cover ABA for adults?

No, EPSDT only covers children under 21. Adults on Medicaid may have limited ABA coverage through other benefits, but it's not guaranteed. Check with your Medicaid plan for adult services.

How long does prior authorization take?

It varies by plan, but typically takes 2 to 4 weeks. Your provider can check on the status. If it's urgent, ask your plan about expedited review.

Can I choose any ABA provider?

You can choose any provider that's in-network with your Medicaid plan. If you want an out-of-network provider, you'll need to ask your plan if they'll cover it, which is rare. Your plan can give you a list of in-network providers.

What if my child's ABA hours are denied?

You have the right to appeal. Ask your provider to help you submit an appeal, and contact your plan's member services for the exact steps and deadlines. You can also request a fair hearing with the state if needed.

Do I need a new diagnosis for ABA?

Yes, you need a current diagnosis of autism from a qualified professional. If your child was diagnosed years ago, it may still be valid, but the plan may want a recent evaluation. Check with your provider.

How do I find my Medicaid plan name?

It's printed on your Health First Colorado member ID card. If you don't have the card, call the Health First Colorado customer service line and they can tell you your plan.