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Y36 ⚠ Non-billable

Operations of war

ICD-10-CM · FY2026 · External Causes of Morbidity

Code
Y36
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Includes
  • injuries to military personnel and civilians caused by war, civil insurrection, and peacekeeping missions
Excludes1 — never code together
  • injury to military personnel occurring during peacetime military operations (Y37.-)
  • military vehicles involved in transport accidents with non-military vehicle during peacetime (V09.01, V09.21, V19.81, V29.818, V39.81, V49.81, V59.81, V69.81, V79.81)
7th character
  • The appropriate 7th character is to be added to each code from category Y36

Frequently asked questions

What is ICD-10 code Y36?
ICD-10-CM code Y36 represents Operations of war. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is Y36 billable?
No. Y36 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is Y36 in?
Y36 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.

Related codes in the Y36 category

Y36.0 War operations involving explosion of marine weapons Non-billable Y36.00 War operations involving explosion of unspecified marine weapon Non-billable Y36.01 War operations involving explosion of depth-charge Non-billable Y36.02 War operations involving explosion of marine mine Non-billable Y36.03 War operations involving explosion of sea-based artillery shell Non-billable Y36.04 War operations involving explosion of torpedo Non-billable Y36.05 War operations involving accidental detonation of onboard marine weapons Non-billable Y36.000 War operations involving explosion of unspecified marine weapon, military personnel Non-billable

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