Getting Autism Therapy Covered by Insurance in South Dakota

South Dakota’s mandate

SDCL §§ 58-17-157 and 58-17-158, enacted 2015, requires state-regulated health plans in South Dakota to cover the diagnosis and treatment of autism spectrum disorder, including applied behavior analysis.

Ages covered: Through age 18.

Dollar cap: Read the wording carefully, because it is the opposite of what most summaries say. South Dakota sets MINIMUMS an insurer may not go below, not maximums: at least $36,000 a year through age 6, at least $25,000 from 7 through 13, and at least $12,500 from 14 through 18. A plan is free to cover more, and describing these as caps understates what you can ask for.

South Dakota does allow more management than most states: ABA may be subject to pre-authorization, prior approval, other care management requirements, and even limits on the number of visits — provided those sit within the plan's general care management provisions and the cost sharing matches what applies to other medical or surgical services. So the fight here is usually about utilization review rather than about the dollar figure.

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, SDCL §§ 58-17-157 and 58-17-158 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

South Dakota Medicaid covers ABA for members under 21 through EPSDT, with no step-down at 7 or 14.

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 South Dakota Division of Insurance on 605-773-3563 if you believe SDCL §§ 58-17-157 and 58-17-158 is being violated. Their consumer pages are here.