ICD-10-CM External Cause Index · FY 2026 124 Entries
Military operations in the External Cause Index ICD-10-CM
The main term Military operations (injuries to military and civilians occuring during peacetime on military property and during routine military exercises and operations) (by) (from) (involving) carries 124 external cause index entries pointing to 48 ICD-10-CM codes. The default entry is Y37.90, 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
124
Index Entries
48
Codes Referenced
Y37.90
Default Code
M
Letter
124 of 124 shown
ICD-10-CM
Index Entries Under Military operations 124 entries · 48 codes
Military operations (injuries to military and civilians occuring during peacetime on military property and during routine military exercises and operations) (by) (from) (involving) Y37.90 Non-billable
air blast Y37.20 Non-billable
aircraft
destruction see Military operations, destruction of aircraft
airway restriction see Military operations, restriction of airways
asphyxiation see Military operations, restriction of airways
biological weapons Y37.6X Non-billable
blast Y37.20 Non-billable
blast fragments Y37.20 Non-billable
blast overpressure
high level (due to explosion) Y37.A2 Non-billable
low level (due to explosion) Y37.A1 Non-billable
blast wave Y37.20 Non-billable
blast wind Y37.20 Non-billable
bomb Y37.20 Non-billable
dirty Y37.50 Non-billable
gasoline Y37.31 Non-billable
incendiary Y37.31 Non-billable
petrol Y37.31 Non-billable
bullet Y37.43 Non-billable
incendiary Y37.32 Non-billable
rubber Y37.41 Non-billable
chemical weapons Y37.7X Non-billable
combat
hand to hand (unarmed) combat Y37.44 Non-billable
using blunt or piercing object Y37.45 Non-billable
conflagration see Military operations, fire
conventional warfare NEC Y37.49 Non-billable
depth-charge Y37.01 Non-billable
destruction of aircraft Y37.10 Non-billable
due to
air to air missile Y37.11 Non-billable
collision with other aircraft Y37.12 Non-billable
detonation (accidental) of onboard munitions and explosives Y37.14 Non-billable
enemy fire or explosives Y37.11 Non-billable
explosive placed on aircraft Y37.11 Non-billable
onboard fire Y37.13 Non-billable
rocket propelled grenade [RPG] Y37.11 Non-billable
small arms fire Y37.11 Non-billable
surface to air missile Y37.11 Non-billable
specified NEC Y37.19 Non-billable
detonation (accidental) of
onboard marine weapons Y37.05 Non-billable
own munitions or munitions launch device Y37.24 Non-billable
dirty bomb Y37.50 Non-billable
explosion (of) Y37.20 Non-billable
aerial bomb Y37.21 Non-billable
own munitions or munitions launch device (accidental) Y37.24 Non-billable
fragments Y37.20 Non-billable
grenade Y37.29 Non-billable
guided missile Y37.22 Non-billable
improvised explosive device [IED] (person-borne) (roadside) (vehicle-borne) Y37.23 Non-billable
land mine Y37.29 Non-billable
marine mine (at sea) (in harbor) Y37.02 Non-billable
marine weapon Y37.00 Non-billable
specified NEC Y37.09 Non-billable
sea-based artillery shell Y37.03 Non-billable
specified NEC Y37.29 Non-billable
torpedo Y37.04 Non-billable
fire Y37.30 Non-billable
specified NEC Y37.39 Non-billable
firearms
discharge Y37.43 Non-billable
pellets Y37.42 Non-billable
flamethrower Y37.33 Non-billable
fragments (from) (of)
improvised explosive device [IED] (person-borne) (roadside) (vehicle-borne) Y37.26 Non-billable
munitions Y37.25 Non-billable
specified NEC Y37.29 Non-billable
weapons Y37.27 Non-billable
friendly fire Y37.92 Non-billable
hand to hand (unarmed) combat Y37.44 Non-billable
HLB overpressure Y37.A2 Non-billable
hot substances see Military operations, fire
incendiary bullet Y37.32 Non-billable
LLB overpressure Y37.A1 Non-billable
nuclear weapon (effects of) Y37.50 Non-billable
acute radiation exposure Y37.54 Non-billable
blast pressure Y37.51 Non-billable
direct blast Y37.51 Non-billable
direct heat Y37.53 Non-billable
fallout exposure Y37.54 Non-billable
fireball Y37.53 Non-billable
indirect blast (struck or crushed by blast debris) (being thrown by blast) Y37.52 Non-billable
ionizing radiation (immediate exposure) Y37.54 Non-billable
nuclear radiation Y37.54 Non-billable
radiation
ionizing (immediate exposure) Y37.54 Non-billable
nuclear Y37.54 Non-billable
thermal Y37.53 Non-billable
specified NEC Y37.59 Non-billable
secondary effects Y37.54 Non-billable
thermal radiation Y37.53 Non-billable
restriction of air (airway)
intentional Y37.46 Non-billable
unintentional Y37.47 Non-billable
rubber bullets Y37.41 Non-billable
shrapnel NOS Y37.29 Non-billable
suffocation see Military operations, restriction of airways
unconventional warfare NEC Y37.7X Non-billable
underwater blast NOS Y37.00 Non-billable
warfare
conventional NEC Y37.49 Non-billable
unconventional NEC Y37.7X Non-billable
weapons
biological weapons Y37.6X Non-billable
chemical Y37.7X Non-billable
nuclear (effects of ) Y37.50 Non-billable
acute radiation exposure Y37.54 Non-billable
blast pressure Y37.51 Non-billable
direct blast Y37.51 Non-billable
direct heat Y37.53 Non-billable
fallout exposure Y37.54 Non-billable
fireball Y37.53 Non-billable
indirect blast (struck or crushed by blast debris) (being thrown by blast) Y37.52 Non-billable
radiation
ionizing (immediate exposure) Y37.54 Non-billable
nuclear Y37.54 Non-billable
thermal Y37.53 Non-billable
secondary effects Y37.54 Non-billable
specified NEC Y37.59 Non-billable
of mass destruction [WMD] Y37.91 Non-billable
weapon of mass destruction [WMD] Y37.91 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.
