Y37.1 vs Y37.2
Y37.1 (Military operations involving destruction of aircraft) compared with Y37.2 (Military operations involving other explosions and fragments), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. Y37.2 carries an Excludes1 note covering Y37.1: “military operations involving explosion of aircraft (Y37.1-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| Y37.1Military operations involving destruction of aircraft | Y37.2Military operations involving other explosions and fragments | |
|---|---|---|
| Billing status | Non-billable header Report instead: Y37.100A, Y37.100D, Y37.100S, Y37.101A, Y37.101D | Non-billable header Report instead: Y37.200A, Y37.200D, Y37.200S, Y37.201A, Y37.201D |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Military operations involving destruction of aircraft is a non-billable ICD-10-CM category code (Y37.1). | Military operations involving other explosions and fragments is a non-billable ICD-10-CM category code (Y37.2). |
| 7th character | The appropriate 7th character is to be added to each code from category Y37 | The appropriate 7th character is to be added to each code from category Y37 |
| Includes | injuries to military personnel and civilians occurring during peacetime on military property and during routine military exercises and operations | injuries to military personnel and civilians occurring during peacetime on military property and during routine military exercises and operations |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources