Y37.2 vs Y37.3
Y37.2 (Military operations involving other explosions and fragments) compared with Y37.3 (Military operations involving fires, conflagrations and hot substances), 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. Y37.3 carries an Excludes1 note covering Y37.2: “military operations involving fires and conflagrations caused indirectly by conventional weapons (Y37.2-)”
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
| Y37.2Military operations involving other explosions and fragments | Y37.3Military operations involving fires, conflagrations and hot substances | |
|---|---|---|
| Billing status | Non-billable header Report instead: Y37.200A, Y37.200D, Y37.200S, Y37.201A, Y37.201D | Non-billable header Report instead: Y37.300A, Y37.300D, Y37.300S, Y37.301A, Y37.301D |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Military operations involving other explosions and fragments is a non-billable ICD-10-CM category code (Y37.2). | Military operations involving fires, conflagrations and hot substances is a non-billable ICD-10-CM category code (Y37.3). |
| 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 Military operations involving smoke, fumes, and heat from fires, conflagrations and hot substances |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources