Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y37.131

    Military operations involving destruction of aircraft due to onboard fire, civilian

  • Y37.131A

    Military operations involving destruction of aircraft due to onboard fire, civilian, initial encounter

  • Y37.131D

    Military operations involving destruction of aircraft due to onboard fire, civilian, subsequent encounter

  • Y37.131S

    Military operations involving destruction of aircraft due to onboard fire, civilian, sequela

  • Y37.14

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives

  • Y37.140

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel

  • Y37.140A

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel, initial encounter

  • Y37.140D

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel, subsequent encounter

  • Y37.140S

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel, sequela

  • Y37.141

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian

  • Y37.141A

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian, initial encounter

  • Y37.141D

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian, subsequent encounter

  • Y37.141S

    Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian, sequela

  • Y37.19

    Military operations involving other destruction of aircraft

  • Y37.190

    Military operations involving other destruction of aircraft, military personnel

  • Y37.190A

    Military operations involving other destruction of aircraft, military personnel, initial encounter

  • Y37.190D

    Military operations involving other destruction of aircraft, military personnel, subsequent encounter

  • Y37.190S

    Military operations involving other destruction of aircraft, military personnel, sequela

  • Y37.191

    Military operations involving other destruction of aircraft, civilian

  • Y37.191A

    Military operations involving other destruction of aircraft, civilian, initial encounter

  • Y37.191D

    Military operations involving other destruction of aircraft, civilian, subsequent encounter

  • Y37.191S

    Military operations involving other destruction of aircraft, civilian, sequela

  • Y37.2

    Military operations involving other explosions and fragments

  • Y37.20

    Military operations involving unspecified explosion and fragments

  • Y37.200

    Military operations involving unspecified explosion and fragments, military personnel

  • Y37.200A

    Military operations involving unspecified explosion and fragments, military personnel, initial encounter

  • Y37.200D

    Military operations involving unspecified explosion and fragments, military personnel, subsequent encounter

  • Y37.200S

    Military operations involving unspecified explosion and fragments, military personnel, sequela

  • Y37.201

    Military operations involving unspecified explosion and fragments, civilian

  • Y37.201A

    Military operations involving unspecified explosion and fragments, civilian, initial encounter

  • Y37.201D

    Military operations involving unspecified explosion and fragments, civilian, subsequent encounter

  • Y37.201S

    Military operations involving unspecified explosion and fragments, civilian, sequela

  • Y37.21

    Military operations involving explosion of aerial bomb

  • Y37.210

    Military operations involving explosion of aerial bomb, military personnel

  • Y37.210A

    Military operations involving explosion of aerial bomb, military personnel, initial encounter

  • Y37.210D

    Military operations involving explosion of aerial bomb, military personnel, subsequent encounter

  • Y37.210S

    Military operations involving explosion of aerial bomb, military personnel, sequela

  • Y37.211

    Military operations involving explosion of aerial bomb, civilian

  • Y37.211A

    Military operations involving explosion of aerial bomb, civilian, initial encounter

  • Y37.211D

    Military operations involving explosion of aerial bomb, civilian, subsequent encounter

  • Y37.211S

    Military operations involving explosion of aerial bomb, civilian, sequela

  • Y37.22

    Military operations involving explosion of guided missile

  • Y37.220

    Military operations involving explosion of guided missile, military personnel

  • Y37.220A

    Military operations involving explosion of guided missile, military personnel, initial encounter

  • Y37.220D

    Military operations involving explosion of guided missile, military personnel, subsequent encounter

  • Y37.220S

    Military operations involving explosion of guided missile, military personnel, sequela

  • Y37.221

    Military operations involving explosion of guided missile, civilian

  • Y37.221A

    Military operations involving explosion of guided missile, civilian, initial encounter

  • Y37.221D

    Military operations involving explosion of guided missile, civilian, subsequent encounter

  • Y37.221S

    Military operations involving explosion of guided missile, civilian, sequela

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