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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  • W54.8XXA—

    Other contact with dog, initial encounter

  • W54.8XXD—

    Other contact with dog, subsequent encounter

  • W54.8XXS—

    Other contact with dog, sequela

  • W55—

    Contact with other mammals

  • W55.0—

    Contact with cat

  • 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

  • W55.09XD—

    Other contact with cat, subsequent encounter

  • W55.09XS—

    Other contact with cat, sequela

  • W55.1—

    Contact with horse

  • W55.11—

    Bitten by horse

  • W55.11XA—

    Bitten by horse, initial encounter

  • W55.11XD—

    Bitten by horse, subsequent encounter

  • W55.11XS—

    Bitten by horse, sequela

  • W55.12—

    Struck by horse

  • W55.12XA—

    Struck by horse, initial encounter

  • W55.12XD—

    Struck by horse, subsequent encounter

  • W55.12XS—

    Struck by horse, sequela

  • W55.19—

    Other contact with horse

  • W55.19XA—

    Other contact with horse, initial encounter

  • W55.19XD—

    Other contact with horse, subsequent encounter

  • W55.19XS—

    Other contact with horse, sequela

  • W55.2—

    Contact with cow

  • W55.21—

    Bitten by cow

  • W55.21XA—

    Bitten by cow, initial encounter

  • W55.21XD—

    Bitten by cow, subsequent encounter

  • W55.21XS—

    Bitten by cow, sequela

  • W55.22—

    Struck by cow

  • W55.22XA—

    Struck by cow, initial encounter

  • W55.22XD—

    Struck by cow, subsequent encounter

  • W55.22XS—

    Struck by cow, sequela

  • W55.29—

    Other contact with cow

  • W55.29XA—

    Other contact with cow, initial encounter

  • W55.29XD—

    Other contact with cow, subsequent encounter

  • W55.29XS—

    Other contact with cow, sequela

  • W55.3—

    Contact with other hoof stock

  • W55.31—

    Bitten by other hoof stock

  • W55.31XA—

    Bitten by other hoof stock, initial encounter

  • W55.31XD—

    Bitten by other hoof stock, subsequent encounter

  • W55.31XS—

    Bitten by other hoof stock, sequela

  • W55.32—

    Struck by other hoof stock

  • W55.32XA—

    Struck by other hoof stock, initial encounter

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