2026 ICD-10-CM Diagnosis Code Y36Operations of war

ICD-10-CM Codes›V01–Y99›Y35-Y38›Y36

ICD-10-CM Y36
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Y36 is a non-billable ICD-10-CM category code for operations of war, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Y36.000A, Y36.000D, Y36.000S, and Y36.001A.

Code Identity

ICD-10-CM Code
Y36
Billable Status
No — Non-Billable Category
Code Describes
Operations of war
Chapter
Y35-Y38
Legal intervention, operations of war, military operations, and terrorism

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionY35-Y38Legal intervention, operations of war, military operations, and terrorism
CategoryY36Operations of war
This CodeY36Operations of war

Specific Coding for Operations of warOverview

Non-specific codes like Y36 require more characters. Use one of these billable codes instead:

  • Y36.0 for War operations involving explosion of marine weapons

  • Y36.00 for War operations involving explosion of unspecified marine weapon

  • Y36.01 for War operations involving explosion of depth-charge

  • Y36.02 for War operations involving explosion of marine mine

  • Y36.03 for War operations involving explosion of sea-based artillery shell

  • Y36.04 for War operations involving explosion of torpedo

  • Y36.05 for War operations involving accidental detonation of onboard marine weapons

  • Y36.09 for War operations involving explosion of other marine weapons

  • Y36.1 for War operations involving destruction of aircraft

  • Y36.10 for War operations involving unspecified destruction of aircraft

  • Y36.11 for War operations involving destruction of aircraft due to enemy fire or explosives

  • Y36.12 for War operations involving destruction of aircraft due to collision with other aircraft

  • Y36.13 for War operations involving destruction of aircraft due to onboard fire

  • Y36.14 for War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives

  • Y36.19 for War operations involving other destruction of aircraft

  • Y36.2 for War operations involving other explosions and fragments

  • Y36.20 for War operations involving unspecified explosion and fragments

  • Y36.21 for War operations involving explosion of aerial bomb

  • Y36.22 for War operations involving explosion of guided missile

  • Y36.23 for War operations involving explosion of improvised explosive device [IED]

  • Y36.24 for War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device

  • Y36.25 for War operations involving fragments from munitions

  • Y36.26 for War operations involving fragments of improvised explosive device [IED]

  • Y36.27 for War operations involving fragments from weapons

  • Y36.29 for War operations involving other explosions and fragments

  • Y36.3 for War operations involving fires, conflagrations and hot substances

  • Y36.30 for War operations involving unspecified fire, conflagration and hot substance

  • Y36.31 for War operations involving gasoline bomb

  • Y36.32 for War operations involving incendiary bullet

  • Y36.33 for War operations involving flamethrower

  • Y36.39 for War operations involving other fires, conflagrations and hot substances

  • Y36.4 for War operations involving firearm discharge and other forms of conventional warfare

  • Y36.41 for War operations involving rubber bullets

  • Y36.42 for War operations involving firearms pellets

  • Y36.43 for War operations involving other firearms discharge

  • Y36.44 for War operations involving unarmed hand to hand combat

  • Y36.45 for War operations involving combat using blunt or piercing object

  • Y36.46 for War operations involving intentional restriction of air and airway

  • Y36.47 for War operations involving unintentional restriction of air and airway

  • Y36.49 for War operations involving other forms of conventional warfare

  • Y36.5 for War operations involving nuclear weapons

  • Y36.50 for War operations involving unspecified effect of nuclear weapon

  • Y36.51 for War operations involving direct blast effect of nuclear weapon

  • Y36.52 for War operations involving indirect blast effect of nuclear weapon

  • Y36.53 for War operations involving thermal radiation effect of nuclear weapon

  • Y36.54 for War operation involving nuclear radiation effects of nuclear weapon

  • Y36.59 for War operation involving other effects of nuclear weapons

  • Y36.6 for War operations involving biological weapons

  • Y36.6X for War operations involving biological weapons

  • Y36.7 for War operations involving chemical weapons and other forms of unconventional warfare

  • Y36.7X for War operations involving chemical weapons and other forms of unconventional warfare

  • Y36.8 for War operations occurring after cessation of hostilities

  • Y36.81 for Explosion of mine placed during war operations but exploding after cessation of hostilities

  • Y36.82 for Explosion of bomb placed during war operations but exploding after cessation of hostilities

  • Y36.88 for Other war operations occurring after cessation of hostilities

  • Y36.89 for Unspecified war operations occurring after cessation of hostilities

  • Y36.9 for Other and unspecified war operations

  • Y36.90 for War operations, unspecified

  • Y36.91 for War operations involving unspecified weapon of mass destruction [WMD]

  • Y36.92 for War operations involving friendly fire

  • Y36.A for Blast overpressure in war operations

  • Y36.A1 for Low level blast overpressure in war operations

  • Y36.A2 for High level blast overpressure in war operations

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • injuries to military personnel and civilians caused by war, civil insurrection, and peacekeeping missions

Type 1 Excludes

7th Character Note

  • The appropriate 7th character is to be added to each code from category Y36

7th Character

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient EducationClinical

Veterans and Military Health

Military service members and veterans have made sacrifices to our country, and they may face lots of different health issues. Some of the most common health problems they may have include chronic pain, sleep disorders, and mental health disorders.

The full article covers:

  • What types of injuries do service members face?
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Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Y36Overview

Is Y36 (Operations of war) a billable code?

No. This is a category header that groups the codes for operations of war, and headers cannot be submitted on claims. Claims for operations of war need a more specific code from this category, such as Y36.000A, Y36.000D, and Y36.000S.