Absolute and relative morbidity burdens attributable to various illnesses and injuries among non-service member beneficiaries of the Military Health System, 2025.

This annual summary documents health care services provided by the Military Health System to beneficiaries of U.S. service members in 2025, including family members, retirees, and family members of retirees. Analysis of 2025 data reveals that non-service member beneficiaries of the Military Health System remain overwhelmingly reliant upon outsourced care: Roughly 70% of TRICARE-eligible and more than 91% of Medicare-eligible individuals received their health care exclusively from civilian providers. The 2025 data also reveal distinct, age-related burdens of morbidity. While both mental health and developmental disorders dominate provision of care for beneficiaries under age 45 years, musculoskeletal system and cardiovascular conditions constitute the primary health care encounters for older adults.