ICD-10-CM > V00-Y99 > Y35-Y38 > Y36 > Y36.4 > Y36.42 Y36.42 War operations involving firearms pellets Non-Billable/Non-Specific Codes Y36.420War operations involving firearms pellets, military personnelY36.420A..., initial encounterY36.420D..., subsequent encounterY36.420S..., sequelaY36.421War operations involving firearms pellets, civilianY36.421A..., initial encounterY36.421D..., subsequent encounterY36.421S..., sequela