From the Document: "On May 28, 2021, President Biden submitted his Fiscal Year (FY) 2022 budget request to Congress. The Department of Defense (DOD) budget request totals $715.0 billion, including $54.0 billion (7.6%) to fund the Military Health System (MHS). The MHS delivers certain health entitlements under Chapter 55 of Title 10, United States Code to military personnel, retirees, and their families. The MHS provides health care to nearly 9.7 million beneficiaries in DOD hospitals and clinics--known as military treatment facilities (MTFs)--and through civilian health care providers participating in TRICARE, a DOD administered health insurance-like program. Congress traditionally appropriates mandatory and discretionary funding for the MHS in several accounts within the annual defense appropriations bill. These accounts include Operation and Maintenance (O&M), Military Personnel (MILPERS), and Military Construction (MILCON). DOD refers to these portions of the budget as the unified medical budget (UMB). In previous years, DOD requested and Congress appropriated MHS funding in DOD's base and overseas contingency operations (OCO) budgets. For FY2022, DOD requests MHS funding (including those for direct war costs)in the base budget only. The request does not include a proposal to modify statutory cost-sharing requirements for beneficiaries."
CRS In Focus, IF11856
Congressional Research Service: https://crsreports.congress.gov/