ABA therapy claims are most commonly denied for 'not medically necessary,' 'experimental treatment,' or missing prior authorization. All three are appealable — 'experimental' denials in particular are legally weak given ABA's evidence base and state mandate requirements. File a written internal appeal with a letter of medical necessity from the treating BCBA, and if that fails, request an independent external review, which is binding on the insurer in most states.
Why Did My Insurance Deny ABA Therapy Coverage? Getting a denial for ABA therapy feels like the end of the road. For most families, it isn't. Most ABA denials trace back to a documentation gap, not a permanent coverage exclusion. Knowing exactly why you were denied tells you exactly what to fix. This guide covers the most common denial reasons, what each one means, and what to do next. What This Tells You Most denials come from incomplete documentation, not a real coverage exclusion. "Not medica
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