Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y37.050

    Military operations involving accidental detonation of onboard marine weapons, military personnel

  • Y37.050A

    Military operations involving accidental detonation of onboard marine weapons, military personnel, initial encounter

  • Y37.050D

    Military operations involving accidental detonation of onboard marine weapons, military personnel, subsequent encounter

  • Y37.050S

    Military operations involving accidental detonation of onboard marine weapons, military personnel, sequela

  • Y37.051

    Military operations involving accidental detonation of onboard marine weapons, civilian

  • Y37.051A

    Military operations involving accidental detonation of onboard marine weapons, civilian, initial encounter

  • Y37.051D

    Military operations involving accidental detonation of onboard marine weapons, civilian, subsequent encounter

  • Y37.051S

    Military operations involving accidental detonation of onboard marine weapons, civilian, sequela

  • Y37.09

    Military operations involving explosion of other marine weapons

  • Y37.090

    Military operations involving explosion of other marine weapons, military personnel

  • Y37.090A

    Military operations involving explosion of other marine weapons, military personnel, initial encounter

  • Y37.090D

    Military operations involving explosion of other marine weapons, military personnel, subsequent encounter

  • Y37.090S

    Military operations involving explosion of other marine weapons, military personnel, sequela

  • Y37.091

    Military operations involving explosion of other marine weapons, civilian

  • Y37.091A

    Military operations involving explosion of other marine weapons, civilian, initial encounter

  • Y37.091D

    Military operations involving explosion of other marine weapons, civilian, subsequent encounter

  • Y37.091S

    Military operations involving explosion of other marine weapons, civilian, sequela

  • Y37.1

    Military operations involving destruction of aircraft

  • Y37.10

    Military operations involving unspecified destruction of aircraft

  • Y37.100

    Military operations involving unspecified destruction of aircraft, military personnel

  • Y37.100A

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

  • Y37.100D

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

  • Y37.100S

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

  • Y37.101

    Military operations involving unspecified destruction of aircraft, civilian

  • Y37.101A

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

  • Y37.101D

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

  • Y37.101S

    Military operations involving unspecified destruction of aircraft, civilian, sequela

  • Y37.11

    Military operations involving destruction of aircraft due to enemy fire or explosives

  • Y37.110

    Military operations involving destruction of aircraft due to enemy fire or explosives, military personnel

  • Y37.110A

    Military operations involving destruction of aircraft due to enemy fire or explosives, military personnel, initial encounter

  • Y37.110D

    Military operations involving destruction of aircraft due to enemy fire or explosives, military personnel, subsequent encounter

  • Y37.110S

    Military operations involving destruction of aircraft due to enemy fire or explosives, military personnel, sequela

  • Y37.111

    Military operations involving destruction of aircraft due to enemy fire or explosives, civilian

  • Y37.111A

    Military operations involving destruction of aircraft due to enemy fire or explosives, civilian, initial encounter

  • Y37.111D

    Military operations involving destruction of aircraft due to enemy fire or explosives, civilian, subsequent encounter

  • Y37.111S

    Military operations involving destruction of aircraft due to enemy fire or explosives, civilian, sequela

  • Y37.12

    Military operations involving destruction of aircraft due to collision with other aircraft

  • Y37.120

    Military operations involving destruction of aircraft due to collision with other aircraft, military personnel

  • Y37.120A

    Military operations involving destruction of aircraft due to collision with other aircraft, military personnel, initial encounter

  • Y37.120D

    Military operations involving destruction of aircraft due to collision with other aircraft, military personnel, subsequent encounter

  • Y37.120S

    Military operations involving destruction of aircraft due to collision with other aircraft, military personnel, sequela

  • Y37.121

    Military operations involving destruction of aircraft due to collision with other aircraft, civilian

  • Y37.121A

    Military operations involving destruction of aircraft due to collision with other aircraft, civilian, initial encounter

  • Y37.121D

    Military operations involving destruction of aircraft due to collision with other aircraft, civilian, subsequent encounter

  • Y37.121S

    Military operations involving destruction of aircraft due to collision with other aircraft, civilian, sequela

  • Y37.13

    Military operations involving destruction of aircraft due to onboard fire

  • Y37.130

    Military operations involving destruction of aircraft due to onboard fire, military personnel

  • Y37.130A

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

  • Y37.130D

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

  • Y37.130S

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

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