ICD10

ICD-10 Code Y36: Operations of war

Y36 is an ICD-10 diagnosis entry used to group records related to Operations of war. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

When is it used?

  • May be used when a clinician documents operations of war in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
20External causes of morbidity (V00-Y99)
block
Y35-Y38Legal intervention, operations of war, military operations, and terrorism
currentY35-Y38

Official coding notes

Includes
  • injuries to military personnel and civilians caused by war, civil insurrection, and peacekeeping missions
Excludes1 (do not 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 notes
  • The appropriate 7th character is to be added to each code from category Y36
  • initial encounter
  • subsequent encounter
  • sequela

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
Y36

Common synonyms

Operations of war

Frequently asked questions

Code details

CodeY36
SystemICD10
Display nameOperations of war
ChapterExternal causes of morbidity (V00-Y99)
BlockLegal intervention, operations of war, military operations, and terrorism

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code Y36 for Operations of war | HealthAssure