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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  • Y23.3—

    Machine gun discharge, undetermined intent

  • Y23.3XXA—

    Machine gun discharge, undetermined intent, initial encounter

  • Y23.3XXD—

    Machine gun discharge, undetermined intent, subsequent encounter

  • Y23.3XXS—

    Machine gun discharge, undetermined intent, sequela

  • Y23.8—

    Other larger firearm discharge, undetermined intent

  • Y23.8XXA—

    Other larger firearm discharge, undetermined intent, initial encounter

  • Y23.8XXD—

    Other larger firearm discharge, undetermined intent, subsequent encounter

  • Y23.8XXS—

    Other larger firearm discharge, undetermined intent, sequela

  • Y23.9—

    Unspecified larger firearm discharge, undetermined intent

  • Y23.9XXA—

    Unspecified larger firearm discharge, undetermined intent, initial encounter

  • Y23.9XXD—

    Unspecified larger firearm discharge, undetermined intent, subsequent encounter

  • Y23.9XXS—

    Unspecified larger firearm discharge, undetermined intent, sequela

  • Y24—

    Other and unspecified firearm discharge, undetermined intent

  • Y24.0—

    Airgun discharge, undetermined intent

  • Y24.0XXA—

    Airgun discharge, undetermined intent, initial encounter

  • Y24.0XXD—

    Airgun discharge, undetermined intent, subsequent encounter

  • Y24.0XXS—

    Airgun discharge, undetermined intent, sequela

  • Y24.8—

    Other firearm discharge, undetermined intent

  • Y24.8XXA—

    Other firearm discharge, undetermined intent, initial encounter

  • Y24.8XXD—

    Other firearm discharge, undetermined intent, subsequent encounter

  • Y24.8XXS—

    Other firearm discharge, undetermined intent, sequela

  • Y24.9—

    Unspecified firearm discharge, undetermined intent

  • Y24.9XXA—

    Unspecified firearm discharge, undetermined intent, initial encounter

  • Y24.9XXD—

    Unspecified firearm discharge, undetermined intent, subsequent encounter

  • Y24.9XXS—

    Unspecified firearm discharge, undetermined intent, sequela

  • Y25—

    Contact with explosive material, undetermined intent

  • Y25.XXXA—

    Contact with explosive material, undetermined intent, initial encounter

  • Y25.XXXD—

    Contact with explosive material, undetermined intent, subsequent encounter

  • Y25.XXXS—

    Contact with explosive material, undetermined intent, sequela

  • Y26—

    Exposure to smoke, fire and flames, undetermined intent

  • Y26.XXXA—

    Exposure to smoke, fire and flames, undetermined intent, initial encounter

  • Y26.XXXD—

    Exposure to smoke, fire and flames, undetermined intent, subsequent encounter

  • Y26.XXXS—

    Exposure to smoke, fire and flames, undetermined intent, sequela

  • Y27—

    Contact with steam, hot vapors and hot objects, undetermined intent

  • Y27.0—

    Contact with steam and hot vapors, undetermined intent

  • Y27.0XXA—

    Contact with steam and hot vapors, undetermined intent, initial encounter

  • Y27.0XXD—

    Contact with steam and hot vapors, undetermined intent, subsequent encounter

  • Y27.0XXS—

    Contact with steam and hot vapors, undetermined intent, sequela

  • Y27.1—

    Contact with hot tap water, undetermined intent

  • Y27.1XXA—

    Contact with hot tap water, undetermined intent, initial encounter

  • Y27.1XXD—

    Contact with hot tap water, undetermined intent, subsequent encounter

  • Y27.1XXS—

    Contact with hot tap water, undetermined intent, sequela

  • Y27.2—

    Contact with hot fluids, undetermined intent

  • Y27.2XXA—

    Contact with hot fluids, undetermined intent, initial encounter

  • Y27.2XXD—

    Contact with hot fluids, undetermined intent, subsequent encounter

  • Y27.2XXS—

    Contact with hot fluids, undetermined intent, sequela

  • Y27.3—

    Contact with hot household appliance, undetermined intent

  • Y27.3XXA—

    Contact with hot household appliance, undetermined intent, initial encounter

  • Y27.3XXD—

    Contact with hot household appliance, undetermined intent, subsequent encounter

  • Y27.3XXS—

    Contact with hot household appliance, undetermined intent, sequela

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