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Bill

S 771

An Act relative to dual diagnosis treatment coverage

194th Legislature (2025-2026) Introduced by Jamie Eldridge and 4 co-sponsors

Bill requires Massachusetts insurers to cover integrated treatment for people with simultaneous mental health and substance use disorders without discriminatory coverage limits.

Committee recommended ought to pass and referred to the committee on Senate Ways and Means
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Bill Summary · S 771

Legislative bill overview

S 771 requires Massachusetts health insurance plans to provide comprehensive coverage for dual diagnosis treatment—therapeutic services for individuals with co-occurring mental health and substance use disorders. The bill mandates that insurers cover evidence-based integrated treatment programs without imposing restrictions that exceed those applied to other medical conditions.

Why is this important

Dual diagnosis (comorbid mental illness and addiction) affects a significant portion of the population seeking treatment, but fragmented insurance coverage often forces patients to seek separate providers or go untreated. Mandating integrated coverage could improve treatment outcomes, reduce emergency department utilization, and lower long-term healthcare costs by addressing both conditions simultaneously rather than in isolation.

Potential points of contention

  • Insurance premium impacts: Insurers may argue that comprehensive dual diagnosis coverage increases premiums; the bill's cost implications are not specified in available information
  • Definition and scope disputes: "Dual diagnosis treatment" could be interpreted broadly or narrowly, creating ambiguity about which programs and providers qualify for mandatory coverage
  • Parity with existing mental health parity laws: Questions remain about how this bill interacts with federal parity requirements and whether it creates redundant or conflicting mandates

Compiled from official sources — confirm details with the bill’s official record.

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