| Full description | Military operations involving chemical weapons and other forms of unconventional warfare, military personnel |
| Billable | No — use a more specific child code |
| Chapter | Chapter 20: External causes of morbidity (V00-Y99) |
| Section | Legal intervention, operations of war, military operations, and terrorism (Y35-Y38) |
| Parent code | Y37.7X — Milt op involving chemical weapons and oth unconvtl warfare |
| Requires 7th character | Yes |