Y36.44 vs Y36.46
Y36.44 (War operations involving unarmed hand to hand combat) compared with Y36.46 (War operations involving intentional restriction of air and airway), 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. Y36.44 carries an Excludes1 note covering Y36.46: “war operations involving intentional restriction of air and airway (Y36.46-)”
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
| Y36.44War operations involving unarmed hand to hand combat | Y36.46War operations involving intentional restriction of air and airway | |
|---|---|---|
| Billing status | Non-billable header Report instead: Y36.440A, Y36.440D, Y36.440S, Y36.441A, Y36.441D | Non-billable header Report instead: Y36.460A, Y36.460D, Y36.460S, Y36.461A, Y36.461D |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | War operations involving unarmed hand to hand combat is a non-billable ICD-10-CM category code (Y36.44). | War operations involving intentional restriction of air and airway is a non-billable ICD-10-CM category code (Y36.46). |
| 7th character | The appropriate 7th character is to be added to each code from category Y36 | The appropriate 7th character is to be added to each code from category Y36 |
| Includes | injuries to military personnel and civilians caused by war, civil insurrection, and peacekeeping missions | injuries to military personnel and civilians caused by war, civil insurrection, and peacekeeping missions |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources