TRICARE Medical Evacuation (MEDEVAC) Explained | TRICARE.com

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## Definition Medical Evacuation (MEDEVAC) is the urgent transport of a patient from one location to another—often via air or specialized ground ambulance—to reach a medical facility that can provide necessary care unavailable at the patient's current location.

## What it means in practice For TRICARE beneficiaries, medical evacuation is typically a covered benefit when it is deemed "medically necessary and appropriate." This process is most common for service members and families stationed at remote overseas installations or those traveling far from a major Military Treatment Facility (MTF). If a local hospital lacks the specialized equipment or specialists required to treat a life-threatening condition (such as a severe burn unit or neonatal intensive care), TRICARE will authorize transport to the nearest capable facility.

In the TRICARE West Region (managed by TriWest) and East Region (managed by Humana Military), emergency medical evacuations generally do not require prior authorization if the situation is an immediate threat to life, limb, or sight. However, for non-emergency but medically necessary transfers—such as moving a stabilized patient to a rehabilitation center—pre-authorization is mandatory. If you are overseas, **International SOS** handles these logistics. They coordinate with the Defense Health Agency (DHA) to determine if the evacuation is covered and if an escort (like a spouse or medical professional) is authorized to travel with the patient.

Costs vary significantly based on your status. Active duty service members (ADSMs) have $0 out-of-pocket costs for authorized evacuations. For retirees and family members on TRICARE Prime or Select, the evacuation cost is usually covered as an ambulance service. Under 2026 rates, if the evacuation is considered an "outpatient" ambulance service, the copayment depends on your sponsor's "Group" status (Group A or Group B). For example, a Group A retiree might pay a fixed copay, while a Select beneficiary might pay a percentage of the allowable charge. Note: TRICARE does not cover "repatriation" evacuations—if you are hiking in Europe and want to fly back to the US for a non-emergency surgery, TRICARE will not pay for that flight.

## Related terms * **Air Ambulance:** A specially equipped fixed-wing aircraft or helicopter used to transport patients who require medical care during transit. * **Medical Necessity:** A determination that a service or supply is required to diagnose or treat a condition according to accepted standards of medical practice. * **International SOS:** The contractor responsible for providing emergency assistance and coordination for TRICARE beneficiaries living or traveling overseas. * **Point of Service (POS) Option:** An additional cost-sharing feature in TRICARE Prime that allows members to seek non-emergency care without a referral, though it rarely applies to emergency evacuations. * **Transfer:** The movement of a patient between two healthcare facilities, which may be covered by TRICARE if the first facility cannot provide the required level of care.

## Sources * TRICARE.mil: Ambulance Services Coverage (https://www.tricare.mil/CoveredServices/IsItCovered/AmbulanceServices) * TRICARE Overseas Program: International SOS coordination (https://www.tricare-overseas.com/) * Humana Military: Medical Necessity and Emergencies (https://www.humanamilitary.com/)