ICD-10-CM Tabular Index · Chapter 20 · FY 2026 Y36

Operations of war (Y36) ICD-10-CM

The Y36 code range covers operations of war with 455 ICD-10-CM diagnosis codes. 297 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
455
Diagnosis Codes
297
Billable Codes
Y36
Code Range
Y35–Y38
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

ICD-10-CM

Codes in the Y36 Range 455 codes · 297 billable

455 of 455 shown
  • Y36 Operations of warNon-billable
  • Y36.0 War operations involving explosion of marine weaponsNon-billable
  • Y36.00 War operations involving explosion of unspecified marine weaponNon-billable
  • Y36.000 War operations involving explosion of unspecified marine weapon, military personnelNon-billable
  • Y36.000A War operations involving explosion of unspecified marine weapon, military personnel, initial encounter
  • Y36.000D War operations involving explosion of unspecified marine weapon, military personnel, subsequent encounter
  • Y36.000S War operations involving explosion of unspecified marine weapon, military personnel, sequela
  • Y36.001 War operations involving explosion of unspecified marine weapon, civilianNon-billable
  • Y36.001A War operations involving explosion of unspecified marine weapon, civilian, initial encounter
  • Y36.001D War operations involving explosion of unspecified marine weapon, civilian, subsequent encounter
  • Y36.001S War operations involving explosion of unspecified marine weapon, civilian, sequela
  • Y36.01 War operations involving explosion of depth-chargeNon-billable
  • Y36.010 War operations involving explosion of depth-charge, military personnelNon-billable
  • Y36.010A War operations involving explosion of depth-charge, military personnel, initial encounter
  • Y36.010D War operations involving explosion of depth-charge, military personnel, subsequent encounter
  • Y36.010S War operations involving explosion of depth-charge, military personnel, sequela
  • Y36.011 War operations involving explosion of depth-charge, civilianNon-billable
  • Y36.011A War operations involving explosion of depth-charge, civilian, initial encounter
  • Y36.011D War operations involving explosion of depth-charge, civilian, subsequent encounter
  • Y36.011S War operations involving explosion of depth-charge, civilian, sequela
  • Y36.02 War operations involving explosion of marine mineNon-billable
  • Y36.020 War operations involving explosion of marine mine, military personnelNon-billable
  • Y36.020A War operations involving explosion of marine mine, military personnel, initial encounter
  • Y36.020D War operations involving explosion of marine mine, military personnel, subsequent encounter
  • Y36.020S War operations involving explosion of marine mine, military personnel, sequela
  • Y36.021 War operations involving explosion of marine mine, civilianNon-billable
  • Y36.021A War operations involving explosion of marine mine, civilian, initial encounter
  • Y36.021D War operations involving explosion of marine mine, civilian, subsequent encounter
  • Y36.021S War operations involving explosion of marine mine, civilian, sequela
  • Y36.03 War operations involving explosion of sea-based artillery shellNon-billable
  • Y36.030 War operations involving explosion of sea-based artillery shell, military personnelNon-billable
  • Y36.030A War operations involving explosion of sea-based artillery shell, military personnel, initial encounter
  • Y36.030D War operations involving explosion of sea-based artillery shell, military personnel, subsequent encounter
  • Y36.030S War operations involving explosion of sea-based artillery shell, military personnel, sequela
  • Y36.031 War operations involving explosion of sea-based artillery shell, civilianNon-billable
  • Y36.031A War operations involving explosion of sea-based artillery shell, civilian, initial encounter
  • Y36.031D War operations involving explosion of sea-based artillery shell, civilian, subsequent encounter
  • Y36.031S War operations involving explosion of sea-based artillery shell, civilian, sequela
  • Y36.04 War operations involving explosion of torpedoNon-billable
  • Y36.040 War operations involving explosion of torpedo, military personnelNon-billable
  • Y36.040A War operations involving explosion of torpedo, military personnel, initial encounter
  • Y36.040D War operations involving explosion of torpedo, military personnel, subsequent encounter
  • Y36.040S War operations involving explosion of torpedo, military personnel, sequela
  • Y36.041 War operations involving explosion of torpedo, civilianNon-billable
  • Y36.041A War operations involving explosion of torpedo, civilian, initial encounter
  • Y36.041D War operations involving explosion of torpedo, civilian, subsequent encounter
  • Y36.041S War operations involving explosion of torpedo, civilian, sequela
  • Y36.05 War operations involving accidental detonation of onboard marine weaponsNon-billable
  • Y36.050 War operations involving accidental detonation of onboard marine weapons, military personnelNon-billable
  • Y36.050A War operations involving accidental detonation of onboard marine weapons, military personnel, initial encounter
  • Y36.050D War operations involving accidental detonation of onboard marine weapons, military personnel, subsequent encounter
  • Y36.050S War operations involving accidental detonation of onboard marine weapons, military personnel, sequela
  • Y36.051 War operations involving accidental detonation of onboard marine weapons, civilianNon-billable
  • Y36.051A War operations involving accidental detonation of onboard marine weapons, civilian, initial encounter
  • Y36.051D War operations involving accidental detonation of onboard marine weapons, civilian, subsequent encounter
  • Y36.051S War operations involving accidental detonation of onboard marine weapons, civilian, sequela
  • Y36.09 War operations involving explosion of other marine weaponsNon-billable
  • Y36.090 War operations involving explosion of other marine weapons, military personnelNon-billable
  • Y36.090A War operations involving explosion of other marine weapons, military personnel, initial encounter
  • Y36.090D War operations involving explosion of other marine weapons, military personnel, subsequent encounter
  • Y36.090S War operations involving explosion of other marine weapons, military personnel, sequela
  • Y36.091 War operations involving explosion of other marine weapons, civilianNon-billable
  • Y36.091A War operations involving explosion of other marine weapons, civilian, initial encounter
  • Y36.091D War operations involving explosion of other marine weapons, civilian, subsequent encounter
  • Y36.091S War operations involving explosion of other marine weapons, civilian, sequela
  • Y36.1 War operations involving destruction of aircraftNon-billable
  • Y36.10 War operations involving unspecified destruction of aircraftNon-billable
  • Y36.100 War operations involving unspecified destruction of aircraft, military personnelNon-billable
  • Y36.100A War operations involving unspecified destruction of aircraft, military personnel, initial encounter
  • Y36.100D War operations involving unspecified destruction of aircraft, military personnel, subsequent encounter
  • Y36.100S War operations involving unspecified destruction of aircraft, military personnel, sequela
  • Y36.101 War operations involving unspecified destruction of aircraft, civilianNon-billable
  • Y36.101A War operations involving unspecified destruction of aircraft, civilian, initial encounter
  • Y36.101D War operations involving unspecified destruction of aircraft, civilian, subsequent encounter
  • Y36.101S War operations involving unspecified destruction of aircraft, civilian, sequela
  • Y36.11 War operations involving destruction of aircraft due to enemy fire or explosivesNon-billable
  • Y36.110 War operations involving destruction of aircraft due to enemy fire or explosives, military personnelNon-billable
  • Y36.110A War operations involving destruction of aircraft due to enemy fire or explosives, military personnel, initial encounter
  • Y36.110D War operations involving destruction of aircraft due to enemy fire or explosives, military personnel, subsequent encounter
  • Y36.110S War operations involving destruction of aircraft due to enemy fire or explosives, military personnel, sequela
  • Y36.111 War operations involving destruction of aircraft due to enemy fire or explosives, civilianNon-billable
  • Y36.111A War operations involving destruction of aircraft due to enemy fire or explosives, civilian, initial encounter
  • Y36.111D War operations involving destruction of aircraft due to enemy fire or explosives, civilian, subsequent encounter
  • Y36.111S War operations involving destruction of aircraft due to enemy fire or explosives, civilian, sequela
  • Y36.12 War operations involving destruction of aircraft due to collision with other aircraftNon-billable
  • Y36.120 War operations involving destruction of aircraft due to collision with other aircraft, military personnelNon-billable
  • Y36.120A War operations involving destruction of aircraft due to collision with other aircraft, military personnel, initial encounter
  • Y36.120D War operations involving destruction of aircraft due to collision with other aircraft, military personnel, subsequent encounter
  • Y36.120S War operations involving destruction of aircraft due to collision with other aircraft, military personnel, sequela
  • Y36.121 War operations involving destruction of aircraft due to collision with other aircraft, civilianNon-billable
  • Y36.121A War operations involving destruction of aircraft due to collision with other aircraft, civilian, initial encounter
  • Y36.121D War operations involving destruction of aircraft due to collision with other aircraft, civilian, subsequent encounter
  • Y36.121S War operations involving destruction of aircraft due to collision with other aircraft, civilian, sequela
  • Y36.13 War operations involving destruction of aircraft due to onboard fireNon-billable
  • Y36.130 War operations involving destruction of aircraft due to onboard fire, military personnelNon-billable
  • Y36.130A War operations involving destruction of aircraft due to onboard fire, military personnel, initial encounter
  • Y36.130D War operations involving destruction of aircraft due to onboard fire, military personnel, subsequent encounter
  • Y36.130S War operations involving destruction of aircraft due to onboard fire, military personnel, sequela
  • Y36.131 War operations involving destruction of aircraft due to onboard fire, civilianNon-billable
  • Y36.131A War operations involving destruction of aircraft due to onboard fire, civilian, initial encounter
  • Y36.131D War operations involving destruction of aircraft due to onboard fire, civilian, subsequent encounter
  • Y36.131S War operations involving destruction of aircraft due to onboard fire, civilian, sequela
  • Y36.14 War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosivesNon-billable
  • Y36.140 War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnelNon-billable
  • Y36.140A War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel, initial encounter
  • Y36.140D War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel, subsequent encounter
  • Y36.140S War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel, sequela
  • Y36.141 War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilianNon-billable
  • Y36.141A War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian, initial encounter
  • Y36.141D War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian, subsequent encounter
  • Y36.141S War operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian, sequela
  • Y36.19 War operations involving other destruction of aircraftNon-billable
  • Y36.190 War operations involving other destruction of aircraft, military personnelNon-billable
  • Y36.190A War operations involving other destruction of aircraft, military personnel, initial encounter
  • Y36.190D War operations involving other destruction of aircraft, military personnel, subsequent encounter
  • Y36.190S War operations involving other destruction of aircraft, military personnel, sequela
  • Y36.191 War operations involving other destruction of aircraft, civilianNon-billable
  • Y36.191A War operations involving other destruction of aircraft, civilian, initial encounter
  • Y36.191D War operations involving other destruction of aircraft, civilian, subsequent encounter
  • Y36.191S War operations involving other destruction of aircraft, civilian, sequela
  • Y36.2 War operations involving other explosions and fragmentsNon-billable
  • Y36.20 War operations involving unspecified explosion and fragmentsNon-billable
  • Y36.200 War operations involving unspecified explosion and fragments, military personnelNon-billable
  • Y36.200A War operations involving unspecified explosion and fragments, military personnel, initial encounter
  • Y36.200D War operations involving unspecified explosion and fragments, military personnel, subsequent encounter
  • Y36.200S War operations involving unspecified explosion and fragments, military personnel, sequela
  • Y36.201 War operations involving unspecified explosion and fragments, civilianNon-billable
  • Y36.201A War operations involving unspecified explosion and fragments, civilian, initial encounter
  • Y36.201D War operations involving unspecified explosion and fragments, civilian, subsequent encounter
  • Y36.201S War operations involving unspecified explosion and fragments, civilian, sequela
  • Y36.21 War operations involving explosion of aerial bombNon-billable
  • Y36.210 War operations involving explosion of aerial bomb, military personnelNon-billable
  • Y36.210A War operations involving explosion of aerial bomb, military personnel, initial encounter
  • Y36.210D War operations involving explosion of aerial bomb, military personnel, subsequent encounter
  • Y36.210S War operations involving explosion of aerial bomb, military personnel, sequela
  • Y36.211 War operations involving explosion of aerial bomb, civilianNon-billable
  • Y36.211A War operations involving explosion of aerial bomb, civilian, initial encounter
  • Y36.211D War operations involving explosion of aerial bomb, civilian, subsequent encounter
  • Y36.211S War operations involving explosion of aerial bomb, civilian, sequela
  • Y36.22 War operations involving explosion of guided missileNon-billable
  • Y36.220 War operations involving explosion of guided missile, military personnelNon-billable
  • Y36.220A War operations involving explosion of guided missile, military personnel, initial encounter
  • Y36.220D War operations involving explosion of guided missile, military personnel, subsequent encounter
  • Y36.220S War operations involving explosion of guided missile, military personnel, sequela
  • Y36.221 War operations involving explosion of guided missile, civilianNon-billable
  • Y36.221A War operations involving explosion of guided missile, civilian, initial encounter
  • Y36.221D War operations involving explosion of guided missile, civilian, subsequent encounter
  • Y36.221S War operations involving explosion of guided missile, civilian, sequela
  • Y36.23 War operations involving explosion of improvised explosive device [IED]Non-billable
  • Y36.230 War operations involving explosion of improvised explosive device [IED], military personnelNon-billable
  • Y36.230A War operations involving explosion of improvised explosive device [IED], military personnel, initial encounter
  • Y36.230D War operations involving explosion of improvised explosive device [IED], military personnel, subsequent encounter
  • Y36.230S War operations involving explosion of improvised explosive device [IED], military personnel, sequela
  • Y36.231 War operations involving explosion of improvised explosive device [IED], civilianNon-billable
  • Y36.231A War operations involving explosion of improvised explosive device [IED], civilian, initial encounter
  • Y36.231D War operations involving explosion of improvised explosive device [IED], civilian, subsequent encounter
  • Y36.231S War operations involving explosion of improvised explosive device [IED], civilian, sequela
  • Y36.24 War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch deviceNon-billable
  • Y36.240 War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnelNon-billable
  • Y36.240A War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel, initial encounter
  • Y36.240D War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel, subsequent encounter
  • Y36.240S War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel, sequela
  • Y36.241 War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilianNon-billable
  • Y36.241A War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian, initial encounter
  • Y36.241D War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian, subsequent encounter
  • Y36.241S War operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian, sequela
  • Y36.25 War operations involving fragments from munitionsNon-billable
  • Y36.250 War operations involving fragments from munitions, military personnelNon-billable
  • Y36.250A War operations involving fragments from munitions, military personnel, initial encounter
  • Y36.250D War operations involving fragments from munitions, military personnel, subsequent encounter
  • Y36.250S War operations involving fragments from munitions, military personnel, sequela
  • Y36.251 War operations involving fragments from munitions, civilianNon-billable
  • Y36.251A War operations involving fragments from munitions, civilian, initial encounter
  • Y36.251D War operations involving fragments from munitions, civilian, subsequent encounter
  • Y36.251S War operations involving fragments from munitions, civilian, sequela
  • Y36.26 War operations involving fragments of improvised explosive device [IED]Non-billable
  • Y36.260 War operations involving fragments of improvised explosive device [IED], military personnelNon-billable
  • Y36.260A War operations involving fragments of improvised explosive device [IED], military personnel, initial encounter
  • Y36.260D War operations involving fragments of improvised explosive device [IED], military personnel, subsequent encounter
  • Y36.260S War operations involving fragments of improvised explosive device [IED], military personnel, sequela
  • Y36.261 War operations involving fragments of improvised explosive device [IED], civilianNon-billable
  • Y36.261A War operations involving fragments of improvised explosive device [IED], civilian, initial encounter
  • Y36.261D War operations involving fragments of improvised explosive device [IED], civilian, subsequent encounter
  • Y36.261S War operations involving fragments of improvised explosive device [IED], civilian, sequela
  • Y36.27 War operations involving fragments from weaponsNon-billable
  • Y36.270 War operations involving fragments from weapons, military personnelNon-billable
  • Y36.270A War operations involving fragments from weapons, military personnel, initial encounter
  • Y36.270D War operations involving fragments from weapons, military personnel, subsequent encounter
  • Y36.270S War operations involving fragments from weapons, military personnel, sequela
  • Y36.271 War operations involving fragments from weapons, civilianNon-billable
  • Y36.271A War operations involving fragments from weapons, civilian, initial encounter
  • Y36.271D War operations involving fragments from weapons, civilian, subsequent encounter
  • Y36.271S War operations involving fragments from weapons, civilian, sequela
  • Y36.29 War operations involving other explosions and fragmentsNon-billable
  • Y36.290 War operations involving other explosions and fragments, military personnelNon-billable
  • Y36.290A War operations involving other explosions and fragments, military personnel, initial encounter
  • Y36.290D War operations involving other explosions and fragments, military personnel, subsequent encounter
  • Y36.290S War operations involving other explosions and fragments, military personnel, sequela
  • Y36.291 War operations involving other explosions and fragments, civilianNon-billable
  • Y36.291A War operations involving other explosions and fragments, civilian, initial encounter
  • Y36.291D War operations involving other explosions and fragments, civilian, subsequent encounter
  • Y36.291S War operations involving other explosions and fragments, civilian, sequela
  • Y36.3 War operations involving fires, conflagrations and hot substancesNon-billable
  • Y36.30 War operations involving unspecified fire, conflagration and hot substanceNon-billable
  • Y36.300 War operations involving unspecified fire, conflagration and hot substance, military personnelNon-billable
  • Y36.300A War operations involving unspecified fire, conflagration and hot substance, military personnel, initial encounter
  • Y36.300D War operations involving unspecified fire, conflagration and hot substance, military personnel, subsequent encounter
  • Y36.300S War operations involving unspecified fire, conflagration and hot substance, military personnel, sequela
  • Y36.301 War operations involving unspecified fire, conflagration and hot substance, civilianNon-billable
  • Y36.301A War operations involving unspecified fire, conflagration and hot substance, civilian, initial encounter
  • Y36.301D War operations involving unspecified fire, conflagration and hot substance, civilian, subsequent encounter
  • Y36.301S War operations involving unspecified fire, conflagration and hot substance, civilian, sequela
  • Y36.31 War operations involving gasoline bombNon-billable
  • Y36.310 War operations involving gasoline bomb, military personnelNon-billable
  • Y36.310A War operations involving gasoline bomb, military personnel, initial encounter
  • Y36.310D War operations involving gasoline bomb, military personnel, subsequent encounter
  • Y36.310S War operations involving gasoline bomb, military personnel, sequela
  • Y36.311 War operations involving gasoline bomb, civilianNon-billable
  • Y36.311A War operations involving gasoline bomb, civilian, initial encounter
  • Y36.311D War operations involving gasoline bomb, civilian, subsequent encounter
  • Y36.311S War operations involving gasoline bomb, civilian, sequela
  • Y36.32 War operations involving incendiary bulletNon-billable
  • Y36.320 War operations involving incendiary bullet, military personnelNon-billable
  • Y36.320A War operations involving incendiary bullet, military personnel, initial encounter
  • Y36.320D War operations involving incendiary bullet, military personnel, subsequent encounter
  • Y36.320S War operations involving incendiary bullet, military personnel, sequela
  • Y36.321 War operations involving incendiary bullet, civilianNon-billable
  • Y36.321A War operations involving incendiary bullet, civilian, initial encounter
  • Y36.321D War operations involving incendiary bullet, civilian, subsequent encounter
  • Y36.321S War operations involving incendiary bullet, civilian, sequela
  • Y36.33 War operations involving flamethrowerNon-billable
  • Y36.330 War operations involving flamethrower, military personnelNon-billable
  • Y36.330A War operations involving flamethrower, military personnel, initial encounter
  • Y36.330D War operations involving flamethrower, military personnel, subsequent encounter
  • Y36.330S War operations involving flamethrower, military personnel, sequela
  • Y36.331 War operations involving flamethrower, civilianNon-billable
  • Y36.331A War operations involving flamethrower, civilian, initial encounter
  • Y36.331D War operations involving flamethrower, civilian, subsequent encounter
  • Y36.331S War operations involving flamethrower, civilian, sequela
  • Y36.39 War operations involving other fires, conflagrations and hot substancesNon-billable
  • Y36.390 War operations involving other fires, conflagrations and hot substances, military personnelNon-billable
  • Y36.390A War operations involving other fires, conflagrations and hot substances, military personnel, initial encounter
  • Y36.390D War operations involving other fires, conflagrations and hot substances, military personnel, subsequent encounter
  • Y36.390S War operations involving other fires, conflagrations and hot substances, military personnel, sequela
  • Y36.391 War operations involving other fires, conflagrations and hot substances, civilianNon-billable
  • Y36.391A War operations involving other fires, conflagrations and hot substances, civilian, initial encounter
  • Y36.391D War operations involving other fires, conflagrations and hot substances, civilian, subsequent encounter
  • Y36.391S War operations involving other fires, conflagrations and hot substances, civilian, sequela
  • Y36.4 War operations involving firearm discharge and other forms of conventional warfareNon-billable
  • Y36.41 War operations involving rubber bulletsNon-billable
  • Y36.410 War operations involving rubber bullets, military personnelNon-billable
  • Y36.410A War operations involving rubber bullets, military personnel, initial encounter
  • Y36.410D War operations involving rubber bullets, military personnel, subsequent encounter
  • Y36.410S War operations involving rubber bullets, military personnel, sequela
  • Y36.411 War operations involving rubber bullets, civilianNon-billable
  • Y36.411A War operations involving rubber bullets, civilian, initial encounter
  • Y36.411D War operations involving rubber bullets, civilian, subsequent encounter
  • Y36.411S War operations involving rubber bullets, civilian, sequela
  • Y36.42 War operations involving firearms pelletsNon-billable
  • Y36.420 War operations involving firearms pellets, military personnelNon-billable
  • Y36.420A War operations involving firearms pellets, military personnel, initial encounter
  • Y36.420D War operations involving firearms pellets, military personnel, subsequent encounter
  • Y36.420S War operations involving firearms pellets, military personnel, sequela
  • Y36.421 War operations involving firearms pellets, civilianNon-billable
  • Y36.421A War operations involving firearms pellets, civilian, initial encounter
  • Y36.421D War operations involving firearms pellets, civilian, subsequent encounter
  • Y36.421S War operations involving firearms pellets, civilian, sequela
  • Y36.43 War operations involving other firearms dischargeNon-billable
  • Y36.430 War operations involving other firearms discharge, military personnelNon-billable
  • Y36.430A War operations involving other firearms discharge, military personnel, initial encounter
  • Y36.430D War operations involving other firearms discharge, military personnel, subsequent encounter
  • Y36.430S War operations involving other firearms discharge, military personnel, sequela
  • Y36.431 War operations involving other firearms discharge, civilianNon-billable
  • Y36.431A War operations involving other firearms discharge, civilian, initial encounter
  • Y36.431D War operations involving other firearms discharge, civilian, subsequent encounter
  • Y36.431S War operations involving other firearms discharge, civilian, sequela
  • Y36.44 War operations involving unarmed hand to hand combatNon-billable
  • Y36.440 War operations involving unarmed hand to hand combat, military personnelNon-billable
  • Y36.440A War operations involving unarmed hand to hand combat, military personnel, initial encounter
  • Y36.440D War operations involving unarmed hand to hand combat, military personnel, subsequent encounter
  • Y36.440S War operations involving unarmed hand to hand combat, military personnel, sequela
  • Y36.441 War operations involving unarmed hand to hand combat, civilianNon-billable
  • Y36.441A War operations involving unarmed hand to hand combat, civilian, initial encounter
  • Y36.441D War operations involving unarmed hand to hand combat, civilian, subsequent encounter
  • Y36.441S War operations involving unarmed hand to hand combat, civilian, sequela
  • Y36.45 War operations involving combat using blunt or piercing objectNon-billable
  • Y36.450 War operations involving combat using blunt or piercing object, military personnelNon-billable
  • Y36.450A War operations involving combat using blunt or piercing object, military personnel, initial encounter
  • Y36.450D War operations involving combat using blunt or piercing object, military personnel, subsequent encounter
  • Y36.450S War operations involving combat using blunt or piercing object, military personnel, sequela
  • Y36.451 War operations involving combat using blunt or piercing object, civilianNon-billable
  • Y36.451A War operations involving combat using blunt or piercing object, civilian, initial encounter
  • Y36.451D War operations involving combat using blunt or piercing object, civilian, subsequent encounter
  • Y36.451S War operations involving combat using blunt or piercing object, civilian, sequela
  • Y36.46 War operations involving intentional restriction of air and airwayNon-billable
  • Y36.460 War operations involving intentional restriction of air and airway, military personnelNon-billable
  • Y36.460A War operations involving intentional restriction of air and airway, military personnel, initial encounter
  • Y36.460D War operations involving intentional restriction of air and airway, military personnel, subsequent encounter
  • Y36.460S War operations involving intentional restriction of air and airway, military personnel, sequela
  • Y36.461 War operations involving intentional restriction of air and airway, civilianNon-billable
  • Y36.461A War operations involving intentional restriction of air and airway, civilian, initial encounter
  • Y36.461D War operations involving intentional restriction of air and airway, civilian, subsequent encounter
  • Y36.461S War operations involving intentional restriction of air and airway, civilian, sequela
  • Y36.47 War operations involving unintentional restriction of air and airwayNon-billable
  • Y36.470 War operations involving unintentional restriction of air and airway, military personnelNon-billable
  • Y36.470A War operations involving unintentional restriction of air and airway, military personnel, initial encounter
  • Y36.470D War operations involving unintentional restriction of air and airway, military personnel, subsequent encounter
  • Y36.470S War operations involving unintentional restriction of air and airway, military personnel, sequela
  • Y36.471 War operations involving unintentional restriction of air and airway, civilianNon-billable
  • Y36.471A War operations involving unintentional restriction of air and airway, civilian, initial encounter
  • Y36.471D War operations involving unintentional restriction of air and airway, civilian, subsequent encounter
  • Y36.471S War operations involving unintentional restriction of air and airway, civilian, sequela
  • Y36.49 War operations involving other forms of conventional warfareNon-billable
  • Y36.490 War operations involving other forms of conventional warfare, military personnelNon-billable
  • Y36.490A War operations involving other forms of conventional warfare, military personnel, initial encounter
  • Y36.490D War operations involving other forms of conventional warfare, military personnel, subsequent encounter
  • Y36.490S War operations involving other forms of conventional warfare, military personnel, sequela
  • Y36.491 War operations involving other forms of conventional warfare, civilianNon-billable
  • Y36.491A War operations involving other forms of conventional warfare, civilian, initial encounter
  • Y36.491D War operations involving other forms of conventional warfare, civilian, subsequent encounter
  • Y36.491S War operations involving other forms of conventional warfare, civilian, sequela
  • Y36.5 War operations involving nuclear weaponsNon-billable
  • Y36.50 War operations involving unspecified effect of nuclear weaponNon-billable
  • Y36.500 War operations involving unspecified effect of nuclear weapon, military personnelNon-billable
  • Y36.500A War operations involving unspecified effect of nuclear weapon, military personnel, initial encounter
  • Y36.500D War operations involving unspecified effect of nuclear weapon, military personnel, subsequent encounter
  • Y36.500S War operations involving unspecified effect of nuclear weapon, military personnel, sequela
  • Y36.501 War operations involving unspecified effect of nuclear weapon, civilianNon-billable
  • Y36.501A War operations involving unspecified effect of nuclear weapon, civilian, initial encounter
  • Y36.501D War operations involving unspecified effect of nuclear weapon, civilian, subsequent encounter
  • Y36.501S War operations involving unspecified effect of nuclear weapon, civilian, sequela
  • Y36.51 War operations involving direct blast effect of nuclear weaponNon-billable
  • Y36.510 War operations involving direct blast effect of nuclear weapon, military personnelNon-billable
  • Y36.510A War operations involving direct blast effect of nuclear weapon, military personnel, initial encounter
  • Y36.510D War operations involving direct blast effect of nuclear weapon, military personnel, subsequent encounter
  • Y36.510S War operations involving direct blast effect of nuclear weapon, military personnel, sequela
  • Y36.511 War operations involving direct blast effect of nuclear weapon, civilianNon-billable
  • Y36.511A War operations involving direct blast effect of nuclear weapon, civilian, initial encounter
  • Y36.511D War operations involving direct blast effect of nuclear weapon, civilian, subsequent encounter
  • Y36.511S War operations involving direct blast effect of nuclear weapon, civilian, sequela
  • Y36.52 War operations involving indirect blast effect of nuclear weaponNon-billable
  • Y36.520 War operations involving indirect blast effect of nuclear weapon, military personnelNon-billable
  • Y36.520A War operations involving indirect blast effect of nuclear weapon, military personnel, initial encounter
  • Y36.520D War operations involving indirect blast effect of nuclear weapon, military personnel, subsequent encounter
  • Y36.520S War operations involving indirect blast effect of nuclear weapon, military personnel, sequela
  • Y36.521 War operations involving indirect blast effect of nuclear weapon, civilianNon-billable
  • Y36.521A War operations involving indirect blast effect of nuclear weapon, civilian, initial encounter
  • Y36.521D War operations involving indirect blast effect of nuclear weapon, civilian, subsequent encounter
  • Y36.521S War operations involving indirect blast effect of nuclear weapon, civilian, sequela
  • Y36.53 War operations involving thermal radiation effect of nuclear weaponNon-billable
  • Y36.530 War operations involving thermal radiation effect of nuclear weapon, military personnelNon-billable
  • Y36.530A War operations involving thermal radiation effect of nuclear weapon, military personnel, initial encounter
  • Y36.530D War operations involving thermal radiation effect of nuclear weapon, military personnel, subsequent encounter
  • Y36.530S War operations involving thermal radiation effect of nuclear weapon, military personnel, sequela
  • Y36.531 War operations involving thermal radiation effect of nuclear weapon, civilianNon-billable
  • Y36.531A War operations involving thermal radiation effect of nuclear weapon, civilian, initial encounter
  • Y36.531D War operations involving thermal radiation effect of nuclear weapon, civilian, subsequent encounter
  • Y36.531S War operations involving thermal radiation effect of nuclear weapon, civilian, sequela
  • Y36.54 War operation involving nuclear radiation effects of nuclear weaponNon-billable
  • Y36.540 War operation involving nuclear radiation effects of nuclear weapon, military personnelNon-billable
  • Y36.540A War operation involving nuclear radiation effects of nuclear weapon, military personnel, initial encounter
  • Y36.540D War operation involving nuclear radiation effects of nuclear weapon, military personnel, subsequent encounter
  • Y36.540S War operation involving nuclear radiation effects of nuclear weapon, military personnel, sequela
  • Y36.541 War operation involving nuclear radiation effects of nuclear weapon, civilianNon-billable
  • Y36.541A War operation involving nuclear radiation effects of nuclear weapon, civilian, initial encounter
  • Y36.541D War operation involving nuclear radiation effects of nuclear weapon, civilian, subsequent encounter
  • Y36.541S War operation involving nuclear radiation effects of nuclear weapon, civilian, sequela
  • Y36.59 War operation involving other effects of nuclear weaponsNon-billable
  • Y36.590 War operation involving other effects of nuclear weapons, military personnelNon-billable
  • Y36.590A War operation involving other effects of nuclear weapons, military personnel, initial encounter
  • Y36.590D War operation involving other effects of nuclear weapons, military personnel, subsequent encounter
  • Y36.590S War operation involving other effects of nuclear weapons, military personnel, sequela
  • Y36.591 War operation involving other effects of nuclear weapons, civilianNon-billable
  • Y36.591A War operation involving other effects of nuclear weapons, civilian, initial encounter
  • Y36.591D War operation involving other effects of nuclear weapons, civilian, subsequent encounter
  • Y36.591S War operation involving other effects of nuclear weapons, civilian, sequela
  • Y36.6 War operations involving biological weaponsNon-billable
  • Y36.6X War operations involving biological weaponsNon-billable
  • Y36.6X0 War operations involving biological weapons, military personnelNon-billable
  • Y36.6X0A War operations involving biological weapons, military personnel, initial encounter
  • Y36.6X0D War operations involving biological weapons, military personnel, subsequent encounter
  • Y36.6X0S War operations involving biological weapons, military personnel, sequela
  • Y36.6X1 War operations involving biological weapons, civilianNon-billable
  • Y36.6X1A War operations involving biological weapons, civilian, initial encounter
  • Y36.6X1D War operations involving biological weapons, civilian, subsequent encounter
  • Y36.6X1S War operations involving biological weapons, civilian, sequela
  • Y36.7 War operations involving chemical weapons and other forms of unconventional warfareNon-billable
  • Y36.7X War operations involving chemical weapons and other forms of unconventional warfareNon-billable
  • Y36.7X0 War operations involving chemical weapons and other forms of unconventional warfare, military personnelNon-billable
  • Y36.7X0A War operations involving chemical weapons and other forms of unconventional warfare, military personnel, initial encounter
  • Y36.7X0D War operations involving chemical weapons and other forms of unconventional warfare, military personnel, subsequent encounter
  • Y36.7X0S War operations involving chemical weapons and other forms of unconventional warfare, military personnel, sequela
  • Y36.7X1 War operations involving chemical weapons and other forms of unconventional warfare, civilianNon-billable
  • Y36.7X1A War operations involving chemical weapons and other forms of unconventional warfare, civilian, initial encounter
  • Y36.7X1D War operations involving chemical weapons and other forms of unconventional warfare, civilian, subsequent encounter
  • Y36.7X1S War operations involving chemical weapons and other forms of unconventional warfare, civilian, sequela
  • Y36.8 War operations occurring after cessation of hostilitiesNon-billable
  • Y36.81 Explosion of mine placed during war operations but exploding after cessation of hostilitiesNon-billable
  • Y36.810 Explosion of mine placed during war operations but exploding after cessation of hostilities, military personnelNon-billable
  • Y36.810A Explosion of mine placed during war operations but exploding after cessation of hostilities, military personnel, initial encounter
  • Y36.810D Explosion of mine placed during war operations but exploding after cessation of hostilities, military personnel, subsequent encounter
  • Y36.810S Explosion of mine placed during war operations but exploding after cessation of hostilities, military personnel, sequela
  • Y36.811 Explosion of mine placed during war operations but exploding after cessation of hostilities, civilianNon-billable
  • Y36.811A Explosion of mine placed during war operations but exploding after cessation of hostilities, civilian, initial encounter
  • Y36.811D Explosion of mine placed during war operations but exploding after cessation of hostilities, civilian, subsequent encounter
  • Y36.811S Explosion of mine placed during war operations but exploding after cessation of hostilities, civilian, sequela
  • Y36.82 Explosion of bomb placed during war operations but exploding after cessation of hostilitiesNon-billable
  • Y36.820 Explosion of bomb placed during war operations but exploding after cessation of hostilities, military personnelNon-billable
  • Y36.820A Explosion of bomb placed during war operations but exploding after cessation of hostilities, military personnel, initial encounter
  • Y36.820D Explosion of bomb placed during war operations but exploding after cessation of hostilities, military personnel, subsequent encounter
  • Y36.820S Explosion of bomb placed during war operations but exploding after cessation of hostilities, military personnel, sequela
  • Y36.821 Explosion of bomb placed during war operations but exploding after cessation of hostilities, civilianNon-billable
  • Y36.821A Explosion of bomb placed during war operations but exploding after cessation of hostilities, civilian, initial encounter
  • Y36.821D Explosion of bomb placed during war operations but exploding after cessation of hostilities, civilian, subsequent encounter
  • Y36.821S Explosion of bomb placed during war operations but exploding after cessation of hostilities, civilian, sequela
  • Y36.88 Other war operations occurring after cessation of hostilitiesNon-billable
  • Y36.880 Other war operations occurring after cessation of hostilities, military personnelNon-billable
  • Y36.880A Other war operations occurring after cessation of hostilities, military personnel, initial encounter
  • Y36.880D Other war operations occurring after cessation of hostilities, military personnel, subsequent encounter
  • Y36.880S Other war operations occurring after cessation of hostilities, military personnel, sequela
  • Y36.881 Other war operations occurring after cessation of hostilities, civilianNon-billable
  • Y36.881A Other war operations occurring after cessation of hostilities, civilian, initial encounter
  • Y36.881D Other war operations occurring after cessation of hostilities, civilian, subsequent encounter
  • Y36.881S Other war operations occurring after cessation of hostilities, civilian, sequela
  • Y36.89 Unspecified war operations occurring after cessation of hostilitiesNon-billable
  • Y36.890 Unspecified war operations occurring after cessation of hostilities, military personnelNon-billable
  • Y36.890A Unspecified war operations occurring after cessation of hostilities, military personnel, initial encounter
  • Y36.890D Unspecified war operations occurring after cessation of hostilities, military personnel, subsequent encounter
  • Y36.890S Unspecified war operations occurring after cessation of hostilities, military personnel, sequela
  • Y36.891 Unspecified war operations occurring after cessation of hostilities, civilianNon-billable
  • Y36.891A Unspecified war operations occurring after cessation of hostilities, civilian, initial encounter
  • Y36.891D Unspecified war operations occurring after cessation of hostilities, civilian, subsequent encounter
  • Y36.891S Unspecified war operations occurring after cessation of hostilities, civilian, sequela
  • Y36.9 Other and unspecified war operationsNon-billable
  • Y36.90 War operations, unspecifiedNon-billable
  • Y36.90XA War operations, unspecified, initial encounter
  • Y36.90XD War operations, unspecified, subsequent encounter
  • Y36.90XS War operations, unspecified, sequela
  • Y36.91 War operations involving unspecified weapon of mass destruction [WMD]Non-billable
  • Y36.91XA War operations involving unspecified weapon of mass destruction [WMD], initial encounter
  • Y36.91XD War operations involving unspecified weapon of mass destruction [WMD], subsequent encounter
  • Y36.91XS War operations involving unspecified weapon of mass destruction [WMD], sequela
  • Y36.92 War operations involving friendly fireNon-billable
  • Y36.92XA War operations involving friendly fire, initial encounter
  • Y36.92XD War operations involving friendly fire, subsequent encounter
  • Y36.92XS War operations involving friendly fire, sequela
  • Y36.A Blast overpressure in war operationsNon-billable
  • Y36.A1 Low level blast overpressure in war operationsNon-billable
  • Y36.A1XA Low level blast overpressure in war operations, initial encounter New
  • Y36.A1XD Low level blast overpressure in war operations, subsequent encounter New
  • Y36.A1XS Low level blast overpressure in war operations, sequela New
  • Y36.A2 High level blast overpressure in war operationsNon-billable
  • Y36.A2XA High level blast overpressure in war operations, initial encounter New
  • Y36.A2XD High level blast overpressure in war operations, subsequent encounter New
  • Y36.A2XS High level blast overpressure in war operations, sequela New

About the Y36 Code Range

The ICD-10 code Y36 refers to injuries and effects resulting from operations of war, covering a wide range of war-related causes. These include explosions, destruction of aircraft, and various conventional and unconventional warfare incidents. This section is used to accurately document the role of war activities in causing injuries for both military personnel and civilians.

This category details specific situations such as explosions from marine weapons, depth charges, mines, aerial bombs, guided missiles, and improvised explosive devices (IEDs). It also includes injuries due to fires, incendiary devices like gasoline bombs and flamethrowers, firearm discharges—including rubber bullets and pellets—unarmed combat, and use of blunt or piercing objects in combat. Additionally, the codes cover effects of chemical, biological, and nuclear weapons, along with injuries from friendly fire and incidents occurring after cessation of hostilities. Each subcode precisely identifies the mechanism, person affected (military or civilian), and the encounter type (initial, subsequent, or sequela).

For medical coders, the ICD-10 code for war operations aids in coding complex injury causes specifically tied to wartime events, supporting detailed epidemiological tracking and specialized care documentation.

Questions About This Page

How many billable codes are in the Y36 range?

Of the 455 codes in this range, 297 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the Y36 range classify?

The range classifies operations of war. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

All ICD-10-CM ChaptersAll of Chapter 20ICD-10-CM Code LookupMS-DRG ReferenceMedicare Code EditsPOA Exempt Codes

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.