ICD-10-CM > V00-Y99 > Y35-Y38 > Y36 > Y36.8 > Y36.89 > Y36.890 Y36.890 Unspecified war operations occurring after cessation of hostilities, military personnel Non-Billable/Non-Specific Codes Y36.890A..., initial encounterY36.890D..., subsequent encounterY36.890S..., sequela