Human services: medical services; coverage for diagnosis of autism spectrum disorders and treatment of autism spectrum disorders; require. Amends 1939 PA 280 (MCL 400.1 - 400.119b) by adding sec. 109u.

HB 4739 removes age restrictions for Medicaid coverage of autism spectrum disorder (ASD) diagnosis and treatment in Michigan. It requires the state department to cover these services for all Medicaid-eligible individuals, including those aged 21 and older, within 180 days of the bill’s effective date. The bill mandates the department to seek federal approval to amend Michigan’s Medicaid plan to include these services for adults. This directly affects Medicaid recipients with ASD, ensuring continued access to diagnostic and treatment services regardless of age.