An Act to update mental health parity

This bill updates Massachusetts laws to ensure that health insurance plans cover mental health services on the same basis as physical health services. It directly affects residents, employees, and policyholders covered by various state-regulated insurance plans, including group policies, individual plans, and health maintenance contracts. The key provision requires insurers to cover the diagnosis and medically necessary treatment of any mental disorder, specifically including autism spectrum disorder, as defined by the most recent editions of the DSM or ICD. Additionally, the legislation removes specific limitations on the types of policies that must comply with these mental health coverage requirements.