ICD-10-CM > V00-Y99 > Y35-Y38 > Y37 > Y37.6 > Y37.6X > Y37.6X0 Y37.6X0 Military operations involving biological weapons, military personnel Non-Billable/Non-Specific Codes Y37.6X0A..., initial encounterY37.6X0D..., subsequent encounterY37.6X0S..., sequela