Getting Autism Therapy Covered by Insurance in Missouri

Missouri’s mandate

RSMo § 376.1224, enacted 2010, requires state-regulated health plans in Missouri to cover the diagnosis and treatment of autism spectrum disorder, including applied behavior analysis.

Ages covered: The ABA cap applies through age 18. Everything else the mandate covers has no age limit.

Dollar cap: $40,000 a calendar year for ABA specifically, and the statute says plainly that this maximum MAY be exceeded with prior approval where more ABA is medically necessary. Treat the cap as a threshold requiring a further request, not as the end of coverage. The figure is inflation-adjusted and the Department publishes the current value in the Missouri Register.

The most useful sentence in the Missouri statute is the one separating ABA from everything else: psychiatric care, psychological care, therapeutic care and pharmacy care are expressly NOT subject to the age and dollar limits above. If an insurer applies the $40,000 ABA cap to your child's speech or psychiatric care, that is not what the law says.

Whether the mandate applies to your plan

This is the question to settle first, because the answer decides whether anything above is enforceable for you. State insurance mandates bind fully insured plans. Self-funded employer plans — where the employer pays claims itself and an insurer only administers them — are generally exempt under federal ERISA, and they cover roughly six in ten people with employer coverage.

Ask your HR department, in writing, which type your plan is. If it is self-funded, RSMo § 376.1224 does not compel coverage — but federal parity law may still help, and many large self-funded employers cover ABA voluntarily. Ask what the plan actually covers rather than assuming the answer is no.

The Medicaid route

MO HealthNet covers ABA for children under 21 through EPSDT, which is not subject to the $40,000 ABA maximum.

How Medicaid waivers work covers the route for families who do not qualify on income alone.

When you are denied

1. Get the denial reason in writing. Insurers must give a specific reason, and the appeal has to answer that reason rather than restate the diagnosis.
2. File the internal appeal within the deadline on the denial letter, with a letter of medical necessity that addresses the stated reason directly.
3. Request external review if the internal appeal fails. Fully insured plans carry external review rights, and an independent reviewer overturns denials more often than families expect.
4. Complain to the Missouri Department of Commerce and Insurance on 1-800-726-7390 if you believe RSMo § 376.1224 is being violated. Their consumer pages are here.