ICD-10-CM > V00-Y99 > Y35-Y38 > Y37 > Y37.4 > Y37.44 Y37.44 Military operations involving unarmed hand to hand combat Non-Billable/Non-Specific Type 1 Excludes military operations involving combat using blunt or piercing object (Y37.45-)military operations involving intentional restriction of air and airway (Y37.46-)military operations involving unintentional restriction of air and airway (Y37.47-) Codes Y37.440Military operations involving unarmed hand to hand combat, military personnelY37.440A..., initial encounterY37.440D..., subsequent encounterY37.440S..., sequelaY37.441Military operations involving unarmed hand to hand combat, civilianY37.441A..., initial encounterY37.441D..., subsequent encounterY37.441S..., sequela