Notwithstanding any provision of the general statutes, the Commissioner of Social Services may reimburse the Department of Mental Health and Addiction Services for targeted case management services that it provides to its target population, which, for purposes of this section, shall include individuals with severe and persistent psychiatric illness and individuals with persistent substance dependence. The Commissioners of Social Services and Mental Health and Addiction Services, in consultation with the Secretary of the Office of Policy and Management, shall ensure that all expenditures for intensive care management eligible for Medicaid reimbursement are submitted to the Centers for Medicare and Medicaid Services.