I. NEUROPSYCHIATRIC PATIENTS
a. CLASS XA (1A) - Severe psychiatric patients requiring use of litters, restraint apparatus, and
sedation while in transit and at destination. Those who require close supervision at all times.
b. CLASS XB (1B) - Psychiatric patients requiring use of litters, sedation, and/or restraint apparatus
while in transit and require special watch aboard aircraft and at intermediate stops.
c. CLASS XC (1C) - Psychiatric Walking Patient of Moderate Severity - Psychiatric patients who are
cooperative and how have proved reliable under observation.
II. PATIENTS OTHER THAN PSYCHIATRIC
a. CLASS XDA (2A) - Immobile litter patients unable to move about of their own volition under any
CLASS XDB (2B) - Mobile litter patients able to move about on their own volition in an emergency.
CLASS XE (3) - Walking patients, other than psychiatric, who require minor attention en route.
CLASS XEI - Infants under 3 years of age occupying a seat.
e. CLASS XF (4) - Troop class walking patients, other than psychiatric, who require no medical
treatment and are physically able to travel unattended. (Class XF Army military patients will be returned to
CONUS through administration channels rather than aeromedical evacuation channels.)
CLASS XG - Ambulatory drug abuse patients.
CLASS XGA - Litter drug abuse patients.
CLASS XEO - Outpatients.
CLASS XX - Recovered patients-- NO CARE EN ROUTE.
CLASS XCO - Infants under 3 years of age.
k. CLASS XCO - Recovered infants under 3 years of age released from patient status and returning to
A third letter "O" will be used to identify outpatients, e.g., XFO, XEO, SCO.
NOTE: All pajamas classified as litter should be clothed in hospital pajamas and delivered to the aircraft on
a properly prepared litter.
Table 3-1. Classification of patients.