ICD-10-CM External Cause Index · FY 2026 132 Entries
War operations in the External Cause Index ICD-10-CM
The main term War operations (injuries to military personnel and civilians during war, civil insurrection and peacekeeping missions) (by) (from) (involving) carries 132 external cause index entries pointing to 52 ICD-10-CM codes. The default entry is Y36.90, the code the bare main term maps to; every indented line below refines the event by vehicle, object, place, or intent. External cause codes are reported after the injury code; verify the 7th character on the code page.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
132
Index Entries
52
Codes Referenced
Y36.90
Default Code
W
Letter
132 of 132 shown
ICD-10-CM
Index Entries Under War operations 132 entries · 52 codes
War operations (injuries to military personnel and civilians during war, civil insurrection and peacekeeping missions) (by) (from) (involving) Y36.90 Non-billable
after cessation of hostilities Y36.89 Non-billable
explosion (of)
bomb placed during war operations Y36.82 Non-billable
mine placed during war operations Y36.81 Non-billable
specified NEC Y36.88 Non-billable
air blast Y36.20 Non-billable
aircraft
destruction see War operations, destruction of aircraft
airway restriction see War operations, restriction of airways
asphyxiation see War operations, restriction of airways
biological weapons Y36.6X Non-billable
blast Y36.20 Non-billable
blast fragments Y36.20 Non-billable
blast overpressure
high level (due to explosion) Y36.A2 Non-billable
low level (due to explosion) Y36.A1 Non-billable
blast wave Y36.20 Non-billable
blast wind Y36.20 Non-billable
bomb Y36.20 Non-billable
dirty Y36.50 Non-billable
gasoline Y36.31 Non-billable
incendiary Y36.31 Non-billable
petrol Y36.31 Non-billable
bullet Y36.43 Non-billable
incendiary Y36.32 Non-billable
rubber Y36.41 Non-billable
chemical weapons Y36.7X Non-billable
combat
hand to hand (unarmed) combat Y36.44 Non-billable
using blunt or piercing object Y36.45 Non-billable
conflagration see War operations, fire
conventional warfare NEC Y36.49 Non-billable
depth-charge Y36.01 Non-billable
destruction of aircraft Y36.10 Non-billable
due to
air to air missile Y36.11 Non-billable
collision with other aircraft Y36.12 Non-billable
detonation (accidental) of onboard munitions and explosives Y36.14 Non-billable
enemy fire or explosives Y36.11 Non-billable
explosive placed on aircraft Y36.11 Non-billable
onboard fire Y36.13 Non-billable
rocket propelled grenade [RPG] Y36.11 Non-billable
small arms fire Y36.11 Non-billable
surface to air missile Y36.11 Non-billable
specified NEC Y36.19 Non-billable
detonation (accidental) of
onboard marine weapons Y36.05 Non-billable
own munitions or munitions launch device Y36.24 Non-billable
dirty bomb Y36.50 Non-billable
explosion (of) Y36.20 Non-billable
after cessation of hostilities
bomb placed during war operations Y36.82 Non-billable
mine placed during war operations Y36.81 Non-billable
aerial bomb Y36.21 Non-billable
own munitions or munitions launch device (accidental) Y36.24 Non-billable
fragments Y36.20 Non-billable
grenade Y36.29 Non-billable
guided missile Y36.22 Non-billable
improvised explosive device [IED] (person-borne) (roadside) (vehicle-borne) Y36.23 Non-billable
land mine Y36.29 Non-billable
marine mine (at sea) (in harbor) Y36.02 Non-billable
marine weapon Y36.00 Non-billable
specified NEC Y36.09 Non-billable
sea-based artillery shell Y36.03 Non-billable
specified NEC Y36.29 Non-billable
torpedo Y36.04 Non-billable
fire Y36.30 Non-billable
specified NEC Y36.39 Non-billable
firearms
discharge Y36.43 Non-billable
pellets Y36.42 Non-billable
flamethrower Y36.33 Non-billable
fragments (from) (of)
improvised explosive device [IED] (person-borne) (roadside) (vehicle-borne) Y36.26 Non-billable
munitions Y36.25 Non-billable
specified NEC Y36.29 Non-billable
weapons Y36.27 Non-billable
friendly fire Y36.92 Non-billable
hand to hand (unarmed) combat Y36.44 Non-billable
HLB overpressure Y36.A2 Non-billable
hot substances see War operations, fire
incendiary bullet Y36.32 Non-billable
LLB overpressure Y36.A1 Non-billable
nuclear weapon (effects of) Y36.50 Non-billable
acute radiation exposure Y36.54 Non-billable
blast pressure Y36.51 Non-billable
direct blast Y36.51 Non-billable
direct heat Y36.53 Non-billable
fallout exposure Y36.54 Non-billable
fireball Y36.53 Non-billable
indirect blast (struck or crushed by blast debris) (being thrown by blast) Y36.52 Non-billable
ionizing radiation (immediate exposure) Y36.54 Non-billable
nuclear radiation Y36.54 Non-billable
radiation
ionizing (immediate exposure) Y36.54 Non-billable
nuclear Y36.54 Non-billable
thermal Y36.53 Non-billable
specified NEC Y36.59 Non-billable
secondary effects Y36.54 Non-billable
thermal radiation Y36.53 Non-billable
restriction of air (airway)
intentional Y36.46 Non-billable
unintentional Y36.47 Non-billable
rubber bullets Y36.41 Non-billable
shrapnel NOS Y36.29 Non-billable
suffocation see War operations, restriction of airways
unconventional warfare NEC Y36.7X Non-billable
underwater blast NOS Y36.00 Non-billable
warfare
conventional NEC Y36.49 Non-billable
unconventional NEC Y36.7X Non-billable
weapons
biological weapons Y36.6X Non-billable
chemical Y36.7X Non-billable
nuclear (effects of ) Y36.50 Non-billable
acute radiation exposure Y36.54 Non-billable
blast pressure Y36.51 Non-billable
direct blast Y36.51 Non-billable
direct heat Y36.53 Non-billable
fallout exposure Y36.54 Non-billable
fireball Y36.53 Non-billable
indirect blast (struck or crushed by blast debris) (being thrown by blast) Y36.52 Non-billable
radiation
ionizing (immediate exposure) Y36.54 Non-billable
nuclear Y36.54 Non-billable
thermal Y36.53 Non-billable
secondary effects Y36.54 Non-billable
specified NEC Y36.59 Non-billable
of mass destruction [WMD] Y36.91 Non-billable
weapon of mass destruction [WMD] Y36.91 Non-billable
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM External Cause of Injuries Index release files, effective October 1, 2025 through September 30, 2026.
