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Y08 vs Y36

Y08 (Assault by other specified means) compared with Y36 (Operations of war), 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. Y08 carries an Excludes1 note covering Y36: “injuries due to operations of war (Y36.-)”

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

Y08Assault by other specified meansY36Operations of war
Billing statusNon-billable header

Report instead: Y08.01XA, Y08.01XD, Y08.01XS, Y08.02XA, Y08.02XD

Non-billable header

Report instead: Y36.000A, Y36.000D, Y36.000S, Y36.001A, Y36.001D

ClassificationV00-Y99 — External Causes of Morbidity (V00-Y99)V00-Y99 — External Causes of Morbidity (V00-Y99)
DefinitionAssault by other specified means is a non-billable ICD-10-CM category code (Y08).Operations of war is a non-billable ICD-10-CM category code (Y36).
7th characterThe appropriate 7th character is to be added to each code from category Y08The appropriate 7th character is to be added to each code from category Y36
Includes
homicide
injuries inflicted by another person with intent to injure or kill, by any means
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