Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • 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

  • Y37.210

    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

  • Y37.220

    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

  • Y37.230

    Military operations involving explosion of improvised explosive device [IED], military personnel

  • Y37.230A

    Military operations involving explosion of improvised explosive device [IED], military personnel, initial encounter

  • Y37.230D

    Military operations involving explosion of improvised explosive device [IED], military personnel, subsequent encounter

  • Y37.230S

    Military operations involving explosion of improvised explosive device [IED], military personnel, sequela

  • Y37.231

    Military operations involving explosion of improvised explosive device [IED], civilian

  • Y37.231A

    Military operations involving explosion of improvised explosive device [IED], civilian, initial encounter

  • Y37.231D

    Military operations involving explosion of improvised explosive device [IED], civilian, subsequent encounter

  • Y37.231S

    Military operations involving explosion of improvised explosive device [IED], civilian, sequela

  • Y37.240

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel

  • Y37.240A

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel, initial encounter

  • Y37.240D

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel, subsequent encounter

  • Y37.240S

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel, sequela

  • Y37.241

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian

  • Y37.241A

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian, initial encounter

  • Y37.241D

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian, subsequent encounter

  • Y37.241S

    Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian, sequela

  • Y37.250

    Military operations involving fragments from munitions, military personnel

  • Y37.250A

    Military operations involving fragments from munitions, military personnel, initial encounter

  • Y37.250D

    Military operations involving fragments from munitions, military personnel, subsequent encounter

  • Y37.250S

    Military operations involving fragments from munitions, military personnel, sequela

  • Y37.251

    Military operations involving fragments from munitions, civilian

  • Y37.251A

    Military operations involving fragments from munitions, civilian, initial encounter

  • Y37.251D

    Military operations involving fragments from munitions, civilian, subsequent encounter

  • Y37.251S

    Military operations involving fragments from munitions, civilian, sequela

  • Y37.260

    Military operations involving fragments of improvised explosive device [IED], military personnel

  • Y37.260A

    Military operations involving fragments of improvised explosive device [IED], military personnel, initial encounter

  • Y37.260D

    Military operations involving fragments of improvised explosive device [IED], military personnel, subsequent encounter

  • Y37.260S

    Military operations involving fragments of improvised explosive device [IED], military personnel, sequela

  • Y37.261

    Military operations involving fragments of improvised explosive device [IED], civilian

  • Y37.261A

    Military operations involving fragments of improvised explosive device [IED], civilian, initial encounter

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