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Y36.5 ICD-10-CA code: War operations involving nuclear weapons

Y36.5 is the ICD-10-CA code for “War operations involving nuclear weapons” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

Y36.5

War operations involving nuclear weapons

ICD-10-CA · Canada · Also written Y365

Index terms

Entries in CIHI’s alphabetical index that lead to Y36.5. Searching the index by the condition the note names is how coders reach this code.

  • Blast (air) in war operations, from nuclear explosion
  • Fireball effects from nuclear explosion in war operations
  • Heat (effects of) (excessive), from, nuclear explosion in war operations
  • War operations (during hostilities) (injury) (by) (in), heat from nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), fireball effects from nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), radiation, ionizing from nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), unconventional warfare NEC, nuclear weapon
  • War operations (during hostilities) (injury) (by) (in), blast (air) (effects), from nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), effect (direct) (secondary) of nuclear weapon
  • Radiation (exposure to), in, war operations (from or following nuclear explosion) (direct) (secondary)
  • War operations (during hostilities) (injury) (by) (in), guided missile (explosion) (fragments), nuclear
  • War operations (during hostilities) (injury) (by) (in), missile (guided) (explosion) (fragments), nuclear
  • War operations (during hostilities) (injury) (by) (in), exposure to ionizing radiation from nuclear explosion
  • Effect(s) (adverse) of, nuclear explosion or weapon in war operations (blast) (direct) (fireball) (heat) (radiation) (secondary)
  • War operations (during hostilities) (injury) (by) (in), explosion (artillery shell) (breech block) (cannon block), nuclear (weapon)
  • Burn, burned, burning (accidental) (by) (from) (on), in war operations (from fire producing device or conventional weapon) NEC, nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), burn from, fire, conflagration (caused by fire producing device or conventional weapon), from nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), asphyxia from, fire, conflagration (caused by fire producing device or conventional weapon), from nuclear explosion
  • War operations (during hostilities) (injury) (by) (in), explosion (artillery shell) (breech block) (cannon block), bomb (antipersonnel) (mortar), nuclear (atom) (hydrogen)
  • Exposure (to), fire (accidental) (with exposure to smoke or fumes or causing burns, or secondary explosion), in, of, on, starting in, war operations (by fire producing device or conventional weapon), from nuclear explosion

Notes for Y36.5

As CIHI prints them, with any note Y36.5 takes from the headings above it.

Includes

  • Blast effectsExposure to ionizing radiation from nuclear weaponFireball effectsHeatOther direct and secondary effects of nuclear weapons
  • Injuries to military personnel and civilians caused by war and civil insurrectionFrom Y36 Operations of war

Note

  • Injuries due to operations of war occurring after cessation of hostilities are classified to Y36.8.From Y36 Operations of war
  • This chapter, which in previous revisions of ICD constituted a supplementary classification, permits the classification of environmental events and circumstances as the cause of injury, poisoning and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used in addition to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter XIX, Injury, poisoning and certain other consequences of external causes (S00-T98). Causes of death should preferably be tabulated according to both Chapter XIX and Chapter XX, but if only one code is tabulated then the code from Chapter XX should be used in preference. Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter XX should be used to provide additional information for multiple-condition analysis only.From Chapter 20: External causes of morbidity and mortality (V01-Y98)

Where Y36.5 sits

  1. 1ChapterChapter 20: External causes of morbidity and mortality (V01-Y98)
  2. 2Block Y35-Y36Legal intervention and operations of war
  3. 3Category Y36Operations of war
  4. 4Valid code Y36.5War operations involving nuclear weapons

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See Y36.5 in the CIHI source

Frequently asked questions

What does ICD-10-CA code Y36.5 mean?

Y36.5 is the ICD-10-CA code for “War operations involving nuclear weapons” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is Y36.5 in ICD-10-CA?

Y36.5 sits under Y36 Operations of war, within Y35-Y36 Legal intervention and operations of war, within Chapter 20: External causes of morbidity and mortality (V01-Y98).

What coding notes apply to Y36.5?

ICD-10-CA lists Includes, Note notes for Y36.5, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside Y36.5

Y36.0War operations involving explosion of marine weaponsY36.1War operations involving destruction of aircraftY36.2War operations involving other explosions and fragmentsY36.3War operations involving fires, conflagrations and hot substancesY36.4War operations involving firearm discharge and other forms of conventional warfareY36.6War operations involving biological weaponsY36.7War operations involving chemical weapons and other forms of unconventional warfareY36.8War operations occurring after cessation of hostilitiesY36.9War operations, unspecified