Has CMS mandated Applied Behavior Analysis (ABA) services for children under 21 with Autism Spectrum Disorder (ASD)?

No. Applied Behavior Analysis (ABA) is one treatment modality for ASD. CMS is not endorsing or requiring any particular treatment modality for ASD. State Medicaid agencies are responsible for determining what services are medically necessary for eligible individuals. States are expected to adhere to long-standing EPSDT obligations for individuals from birth to age 21, including providing medically necessary services available for the treatment of ASD.

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