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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  • W53.09—

    Other contact with mouse

  • W53.09XA—

    Other contact with mouse, initial encounter

  • W53.09XD—

    Other contact with mouse, subsequent encounter

  • W53.09XS—

    Other contact with mouse, sequela

  • W53.11—

    Bitten by rat

  • W53.11XA—

    Bitten by rat, initial encounter

  • W53.11XD—

    Bitten by rat, subsequent encounter

  • W53.11XS—

    Bitten by rat, sequela

  • W53.19—

    Other contact with rat

  • W53.19XA—

    Other contact with rat, initial encounter

  • W53.19XD—

    Other contact with rat, subsequent encounter

  • W53.19XS—

    Other contact with rat, sequela

  • W53.21—

    Bitten by squirrel

  • W53.21XA—

    Bitten by squirrel, initial encounter

  • W53.21XD—

    Bitten by squirrel, subsequent encounter

  • W53.21XS—

    Bitten by squirrel, sequela

  • W53.29—

    Other contact with squirrel

  • W53.29XA—

    Other contact with squirrel, initial encounter

  • W53.29XD—

    Other contact with squirrel, subsequent encounter

  • W53.29XS—

    Other contact with squirrel, sequela

  • W53.81—

    Bitten by other rodent

  • W53.81XA—

    Bitten by other rodent, initial encounter

  • W53.81XD—

    Bitten by other rodent, subsequent encounter

  • W53.81XS—

    Bitten by other rodent, sequela

  • W53.89—

    Other contact with other rodent

  • W53.89XA—

    Other contact with other rodent, initial encounter

  • W53.89XD—

    Other contact with other rodent, subsequent encounter

  • W53.89XS—

    Other contact with other rodent, sequela

  • W54.0—

    Bitten by dog

  • W54.0XXA—

    Bitten by dog, initial encounter

  • W54.0XXD—

    Bitten by dog, subsequent encounter

  • W54.0XXS—

    Bitten by dog, sequela

  • W54.1—

    Struck by dog

  • W54.1XXA—

    Struck by dog, initial encounter

  • W54.1XXD—

    Struck by dog, subsequent encounter

  • W54.1XXS—

    Struck by dog, sequela

  • W54.8—

    Other contact with dog

  • W54.8XXA—

    Other contact with dog, initial encounter

  • W54.8XXD—

    Other contact with dog, subsequent encounter

  • W54.8XXS—

    Other contact with dog, sequela

  • W55.01—

    Bitten by cat

  • W55.01XA—

    Bitten by cat, initial encounter

  • W55.01XD—

    Bitten by cat, subsequent encounter

  • W55.01XS—

    Bitten by cat, sequela

  • W55.03—

    Scratched by cat

  • W55.03XA—

    Scratched by cat, initial encounter

  • W55.03XD—

    Scratched by cat, subsequent encounter

  • W55.03XS—

    Scratched by cat, sequela

  • W55.09—

    Other contact with cat

  • W55.09XA—

    Other contact with cat, initial encounter

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