ICD-10-CM > V00-Y99 > Y35-Y38 > Y37 > Y37.4 > Y37.42 Y37.42 Military operations involving firearms pellets Non-Billable/Non-Specific Codes Y37.420Military operations involving firearms pellets, military personnelY37.420A..., initial encounterY37.420D..., subsequent encounterY37.420S..., sequelaY37.421Military operations involving firearms pellets, civilianY37.421A..., initial encounterY37.421D..., subsequent encounterY37.421S..., sequela