| A | B |
| TRICARE | worldwide healthcare system for the military |
| Military Health System (MHS) | healthcare infrastructure of the U.S. uniformed service |
| military treatment facilities (MTFs) | clinics or hospitals operated by the DOD located on military bases to provide care |
| sponsor | service member, whether in active duty, retired, or deceased |
| Defense Enrollment Eligibility Reporting System (DEERS) | global computerized databse of uniformed services members, family members, and others eligible for military benefits |
| certificate of credible coverage | evidence of prior healthcare coverage under TRICARE |
| TRICARE's allowable charge | CHAMPUS Maximum Allowable Charge |
| non-availability statement (NAS) | certification from military hospital stating it cannot provide the care for TRICARE beneficiary needs |
| TRICARE for Life | Medicare-wraparound coverage |
| TRICARE authorized provider | hospital or institutional provider, physician, or other provider specifically authorized to provide benefits under TRICARE |
| accepting assignment | agree to accept the TRICARE allowable charge as payment in full |
| catastrophic cap | annual uppper limit a family will have to pay for TRICARE standard |
| claims processor | designated contractor who processes medical claims within a particular state or region |