Find a Security Clearance Job!


Appendix H
Medical Evacuation


H-1. Medical evacuation is the timely and efficient movement of the wounded, injured, or ill while providing en route medical care to and between medical treatment facilities (FM 4-02). MEDEVAC may utilize various ground transport methods or employ MEDEVAC or casualty evacuation assets.

H-2. The senior military person present makes the determination to request MEDEVAC and assigns precedence. This decision is based on the advice of the senior medical person at the scene, the patient's condition, and the tactical situation.

H-3. It is necessary to be aware of security considerations in the area for rendezvous for the MEDEVAC vehicle and casualty. Aggressive security measures should be planned, prepared for, and executed. PROCEDURES FOR REQUESTING A MEDICAL EVACUATION

H-4. Use the following message format to request MEDEVAC:

Line 1 Location of pickup site by grid coordinates with grid zone letters.
Line 2 Requesting unit radio frequency, call sign, and suffix.
Line 3 Number of patients by precedence. Note the brevity codes used.
A--Urgent Complete (evacuate as soon as possible or within 2 hours)
B--Urgent Surgical (evacuate within 2 hours to the nearest surgical unit)
C--Priority (evacuate promptly or within 4 hours)
D--Routine (evacuate within 24 hours)
E--Convenience (medical convenience rather than necessity)
Line 4 Special equipment required.
C--Extraction equipment
D--Ventilator Number of patients by type.
Line 5 L--Litter plus the number of patients
A--Ambulatory plus the number of patients
Line 6 (War) Security of pickup site.
N--No enemy personnel in the area.
P--Possible enemy personnel in the area (approach with caution)
E--Enemy personnel in the area (approach with caution)
X--Enemy personnel in the area (armed escort required)
Line 6 (Peace) Number and type of wounds.
Line 7 Method of marking at pickup site.
B--Pyrotechnic signal
C--Smoke signal
E--Other Patient Nationality and Status.
Line 8 A--US military
B--US civilian
C--Non-US military
D--Non-US civilian
Line 9 (War) NBC Contamination.
Line 9 (Peace) Terrain description.


H-5. Follow these guidelines during MEDEVAC operations:

  • Clear debris. Mark obstacles.
  • VS-17 panels--secure beanbag light properly.
  • Cleared diameter for UH-60 = 50 meters.
  • Cleared diameter for CH-47 = 80 meters.
  • Land heading into the wind.
  • Avoid landing on a down-slope.
  • Do not land on slope >16 degrees.
  • Prevent overclassification (the tendency to classify a wound as more severe than it actually is).
  • Do not violate radio silence.
  • Use the order of precedence accurately.
  • Keep transmissions 25 seconds or less in length.

Join the mailing list

Unconventional Threat podcast - Threats Foreign and Domestic: 'In Episode One of Unconventional Threat, we identify and examine a range of threats, both foreign and domestic, that are endangering the integrity of our democracy'