The bill amends Chapter 27-18.8 of the General Laws, known as the "Health Care Accessibility and Quality Assurance Act," by introducing a new section that requires each healthcare entity or network plan to compile and report to the office of the health insurance commissioner a summary of how it requires its contracted providers to submit claims for in-network outpatient behavioral health services. This reporting must occur before January 1, 2026, and at least annually thereafter. The summary should include details on the use of specific current procedural terminology (CPT) codes, modifiers related to behavioral health services, and any other formal requirements that identify a claim as pertaining to in-network outpatient behavioral health services.

Furthermore, the bill mandates that all contracts with providers for in-network outpatient behavioral health services, including substance use disorder services, must include a provision that, as of January 1, 2026, rates paid under such contracts for those services shall be subject to a one-time average increase of no less than the percentage increase determined by the health insurance commissioner based on the United States Department of Labor's Consumer Price Index for All Urban Consumers (CPI-Urban) as of October 1, 2025, plus an additional five percent (5%). The act will take effect upon passage.