EXEMPTION CODE TABLE
Exception
Code
Description Definition Duration
AD  Admin Deceased   Service member deceased  999 Days 
AL  Admin Emergency Leave   Emergency Leave  30 Days  
AM  Admin Missing   Missing in Action/Prisoner of War  999 Days 
AP  Admin PCS   Permanent Change of Station  90 Days  
AR  Admin Refusal   Any service member in UCMJ proceedings for failure to follow a direct order by their commander to take the vaccine (following an initial declination, re-education, and counseling by their chain of command).  999 Days 
AS  Admin Separation   Pending discharge or separation (typically within 60 days). Retirement (typically within 180 days)  999 Days 
AT  Admin Temporary   Absent without leave; Legal action pending (other than code AR); Temporary Duty Assignment (TDY) (max duration 30 days)  90 Days  
MD  Medical Declined   Declined by person for such reasons as religious waivers, declination of optional immunization, etc.   999 Days 
MI  Medical Immune   Positive titer, positive serology. Not Susceptible - (for specific immunization) e.g chicken pox, rubella prior to 1957.  999 Days 
MP  Medical Permanent   HIV positive, prolonged or permanent immune suppression. Pre-existing allergy, medical contraindication determined by physician. For Tuberculosis: Positive Tuberculosis Skin Test.  999 Days 
MR  Medical Reactive   A permanent restriction from receiving additional doses of a specific vaccine. To be used only after severe adverse vaccine reaction. Such reactions must be reported to the FDA Vaccine Adverse Events Reporting System(VAERS). Mild, transient reactions involving soreness, redness, swelling, lumps, low grade fever or related symtoms should not be coded as MR. Events referred for medical consultation may be coded as MT.   999 Days 
MT  Medical Temporary   Pregnancy, hospitalization, events referred for medical consultation, temporary immune suppression, convalescent leave, pending medical evaluation board or in medical hold.   365 Days 
NR  Not Required   Military personnel who recieved Anthrax immunizations while eligible and have since retired or ETS'd & now part of the GS work force or defense contractor not otherwise required to take the Anthrax vaccination.  999 Days 
NOTE: A duration of "999 Days" signifies that this exception DOES NOT EXPIRE!