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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  • W55.51—

    Bitten by raccoon

  • W55.51XA—

    Bitten by raccoon, initial encounter

  • W55.51XD—

    Bitten by raccoon, subsequent encounter

  • W55.51XS—

    Bitten by raccoon, sequela

  • W55.52—

    Struck by raccoon

  • W55.52XA—

    Struck by raccoon, initial encounter

  • W55.52XD—

    Struck by raccoon, subsequent encounter

  • W55.52XS—

    Struck by raccoon, sequela

  • W55.59—

    Other contact with raccoon

  • W55.59XA—

    Other contact with raccoon, initial encounter

  • W55.59XD—

    Other contact with raccoon, subsequent encounter

  • W55.59XS—

    Other contact with raccoon, sequela

  • W55.81—

    Bitten by other mammals

  • W55.81XA—

    Bitten by other mammals, initial encounter

  • W55.81XD—

    Bitten by other mammals, subsequent encounter

  • W55.81XS—

    Bitten by other mammals, sequela

  • W55.82—

    Struck by other mammals

  • W55.82XA—

    Struck by other mammals, initial encounter

  • W55.82XD—

    Struck by other mammals, subsequent encounter

  • W55.82XS—

    Struck by other mammals, sequela

  • W55.89—

    Other contact with other mammals

  • W55.89XA—

    Other contact with other mammals, initial encounter

  • W55.89XD—

    Other contact with other mammals, subsequent encounter

  • W55.89XS—

    Other contact with other mammals, sequela

  • W56.01—

    Bitten by dolphin

  • W56.01XA—

    Bitten by dolphin, initial encounter

  • W56.01XD—

    Bitten by dolphin, subsequent encounter

  • W56.01XS—

    Bitten by dolphin, sequela

  • W56.02—

    Struck by dolphin

  • W56.02XA—

    Struck by dolphin, initial encounter

  • W56.02XD—

    Struck by dolphin, subsequent encounter

  • W56.02XS—

    Struck by dolphin, sequela

  • W56.09—

    Other contact with dolphin

  • W56.09XA—

    Other contact with dolphin, initial encounter

  • W56.09XD—

    Other contact with dolphin, subsequent encounter

  • W56.09XS—

    Other contact with dolphin, sequela

  • W56.11—

    Bitten by sea lion

  • W56.11XA—

    Bitten by sea lion, initial encounter

  • W56.11XD—

    Bitten by sea lion, subsequent encounter

  • W56.11XS—

    Bitten by sea lion, sequela

  • W56.12—

    Struck by sea lion

  • W56.12XA—

    Struck by sea lion, initial encounter

  • W56.12XD—

    Struck by sea lion, subsequent encounter

  • W56.12XS—

    Struck by sea lion, sequela

  • W56.19—

    Other contact with sea lion

  • W56.19XA—

    Other contact with sea lion, initial encounter

  • W56.19XD—

    Other contact with sea lion, subsequent encounter

  • W56.19XS—

    Other contact with sea lion, sequela

  • W56.21—

    Bitten by orca

  • W56.21XA—

    Bitten by orca, initial encounter

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