V94.81 vs Y37
V94.81 (Water transport accident involving military watercraft) compared with Y37 (Military operations), 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. V94.81 carries an Excludes1 note covering Y37: “military watercraft accidents in military or war operations (Y36, Y37)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. Y37 carries an Excludes1 note covering V94.81: “military watercraft involved in water transport accident with civilian watercraft (V94.81-)”
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
| V94.81Water transport accident involving military watercraft | Y37Military operations | |
|---|---|---|
| Billing status | Non-billable header Report instead: V94.810A, V94.810D, V94.810S, V94.811A, V94.811D | Non-billable header Report instead: Y37.000A, Y37.000D, Y37.000S, Y37.001A, Y37.001D |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Water transport accident involving military watercraft is a non-billable ICD-10-CM category code (V94.81). | Military operations is a non-billable ICD-10-CM category code (Y37). |
| 7th character | The appropriate 7th character is to be added to each code from category V94 | 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 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources