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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  • W55.09XD—

    Other contact with cat, subsequent encounter

  • W55.09XS—

    Other contact with cat, sequela

  • 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

  • W55.21—

    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

  • W55.31—

    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

  • W55.32XD—

    Struck by other hoof stock, subsequent encounter

  • W55.32XS—

    Struck by other hoof stock, sequela

  • W55.39—

    Other contact with other hoof stock

  • W55.39XA—

    Other contact with other hoof stock, initial encounter

  • W55.39XD—

    Other contact with other hoof stock, subsequent encounter

  • W55.39XS—

    Other contact with other hoof stock, sequela

  • W55.41—

    Bitten by pig

  • W55.41XA—

    Bitten by pig, initial encounter

  • W55.41XD—

    Bitten by pig, subsequent encounter

  • W55.41XS—

    Bitten by pig, sequela

  • W55.42—

    Struck by pig

  • W55.42XA—

    Struck by pig, initial encounter

  • W55.42XD—

    Struck by pig, subsequent encounter

  • W55.42XS—

    Struck by pig, sequela

  • W55.49—

    Other contact with pig

  • W55.49XA—

    Other contact with pig, initial encounter

  • W55.49XD—

    Other contact with pig, subsequent encounter

  • W55.49XS—

    Other contact with pig, sequela

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