130 CMR 400.000 through 499.000 contain the MassHealth agency's regulations specific to provider participation in, and the medical services and benefits available under, MassHealth and the Emergency Aid to the Elderly, Disabled and Children Program. 130 CMR 450.000 applies to all MassHealth providers and services. The MassHealth agency also promulgates other regulations, and publishes other documents affecting these programs, including other chapters in 130 CMR, statements of policy and procedure, conditions of participation, guidelines, billing and claims submission instructions, provider bulletins, and other documents referenced in 130 CMR. In addition, the regulations in 130 CMR frequently refer to federal regulations, to regulations of the Massachusetts Department of Public Health and other agencies, and to rates and fee schedules established by the Massachusetts Executive Office of Health and Human Services.
130 CMR, § 450.102