All ICD10 Codes
Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • Y37.531—

    Military operations involving thermal radiation effect of nuclear weapon, civilian

  • Y37.531A—

    Military operations involving thermal radiation effect of nuclear weapon, civilian, initial encounter

  • Y37.531D—

    Military operations involving thermal radiation effect of nuclear weapon, civilian, subsequent encounter

  • Y37.531S—

    Military operations involving thermal radiation effect of nuclear weapon, civilian, sequela

  • Y37.540—

    Military operation involving nuclear radiation effects of nuclear weapon, military personnel

  • Y37.540A—

    Military operation involving nuclear radiation effects of nuclear weapon, military personnel, initial encounter

  • Y37.540D—

    Military operation involving nuclear radiation effects of nuclear weapon, military personnel, subsequent encounter

  • Y37.540S—

    Military operation involving nuclear radiation effects of nuclear weapon, military personnel, sequela

  • Y37.541—

    Military operation involving nuclear radiation effects of nuclear weapon, civilian

  • Y37.541A—

    Military operation involving nuclear radiation effects of nuclear weapon, civilian, initial encounter

  • Y37.541D—

    Military operation involving nuclear radiation effects of nuclear weapon, civilian, subsequent encounter

  • Y37.541S—

    Military operation involving nuclear radiation effects of nuclear weapon, civilian, sequela

  • Y37.590—

    Military operation involving other effects of nuclear weapons, military personnel

  • Y37.590A—

    Military operation involving other effects of nuclear weapons, military personnel, initial encounter

  • Y37.590D—

    Military operation involving other effects of nuclear weapons, military personnel, subsequent encounter

  • Y37.590S—

    Military operation involving other effects of nuclear weapons, military personnel, sequela

  • Y37.591—

    Military operation involving other effects of nuclear weapons, civilian

  • Y37.591A—

    Military operation involving other effects of nuclear weapons, civilian, initial encounter

  • Y37.591D—

    Military operation involving other effects of nuclear weapons, civilian, subsequent encounter

  • Y37.591S—

    Military operation involving other effects of nuclear weapons, civilian, sequela

  • Y37.6X0—

    Military operations involving biological weapons, military personnel

  • Y37.6X0A—

    Military operations involving biological weapons, military personnel, initial encounter

  • Y37.6X0D—

    Military operations involving biological weapons, military personnel, subsequent encounter

  • Y37.6X0S—

    Military operations involving biological weapons, military personnel, sequela

  • Y37.6X1—

    Military operations involving biological weapons, civilian

  • Y37.6X1A—

    Military operations involving biological weapons, civilian, initial encounter

  • Y37.6X1D—

    Military operations involving biological weapons, civilian, subsequent encounter

  • Y37.6X1S—

    Military operations involving biological weapons, civilian, sequela

  • Y37.7X0—

    Military operations involving chemical weapons and other forms of unconventional warfare, military personnel

  • Y37.7X0A—

    Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, initial encounter

  • Y37.7X0D—

    Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, subsequent encounter

  • Y37.7X0S—

    Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, sequela

  • Y37.7X1—

    Military operations involving chemical weapons and other forms of unconventional warfare, civilian

  • Y37.7X1A—

    Military operations involving chemical weapons and other forms of unconventional warfare, civilian, initial encounter

  • Y37.7X1D—

    Military operations involving chemical weapons and other forms of unconventional warfare, civilian, subsequent encounter

  • Y37.7X1S—

    Military operations involving chemical weapons and other forms of unconventional warfare, civilian, sequela

  • Y37.90—

    Military operations, unspecified

  • Y37.90XA—

    Military operations, unspecified, initial encounter

  • Y37.90XD—

    Military operations, unspecified, subsequent encounter

  • Y37.90XS—

    Military operations, unspecified, sequela

  • Y37.91—

    Military operations involving unspecified weapon of mass destruction [WMD]

  • Y37.91XA—

    Military operations involving unspecified weapon of mass destruction [WMD], initial encounter

  • Y37.91XD—

    Military operations involving unspecified weapon of mass destruction [WMD], subsequent encounter

  • Y37.91XS—

    Military operations involving unspecified weapon of mass destruction [WMD], sequela

  • Y37.92—

    Military operations involving friendly fire

  • Y37.92XA—

    Military operations involving friendly fire, initial encounter

  • Y37.92XD—

    Military operations involving friendly fire, subsequent encounter

  • Y37.92XS—

    Military operations involving friendly fire, sequela

  • Y37.A1—

    Low level blast overpressure in military operations

  • Y37.A1XA—

    Low level blast overpressure in military operations, initial encounter

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