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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  • W56.41XA—

    Bitten by shark, initial encounter

  • W56.41XD—

    Bitten by shark, subsequent encounter

  • W56.41XS—

    Bitten by shark, sequela

  • W56.42—

    Struck by shark

  • W56.42XA—

    Struck by shark, initial encounter

  • W56.42XD—

    Struck by shark, subsequent encounter

  • W56.42XS—

    Struck by shark, sequela

  • W56.49—

    Other contact with shark

  • W56.49XA—

    Other contact with shark, initial encounter

  • W56.49XD—

    Other contact with shark, subsequent encounter

  • W56.49XS—

    Other contact with shark, sequela

  • W56.5—

    Contact with other fish

  • W56.51—

    Bitten by other fish

  • W56.51XA—

    Bitten by other fish, initial encounter

  • W56.51XD—

    Bitten by other fish, subsequent encounter

  • W56.51XS—

    Bitten by other fish, sequela

  • W56.52—

    Struck by other fish

  • W56.52XA—

    Struck by other fish, initial encounter

  • W56.52XD—

    Struck by other fish, subsequent encounter

  • W56.52XS—

    Struck by other fish, sequela

  • W56.59—

    Other contact with other fish

  • W56.59XA—

    Other contact with other fish, initial encounter

  • W56.59XD—

    Other contact with other fish, subsequent encounter

  • W56.59XS—

    Other contact with other fish, sequela

  • W56.8—

    Contact with other nonvenomous marine animals

  • W56.81—

    Bitten by other nonvenomous marine animals

  • W56.81XA—

    Bitten by other nonvenomous marine animals, initial encounter

  • W56.81XD—

    Bitten by other nonvenomous marine animals, subsequent encounter

  • W56.81XS—

    Bitten by other nonvenomous marine animals, sequela

  • W56.82—

    Struck by other nonvenomous marine animals

  • W56.82XA—

    Struck by other nonvenomous marine animals, initial encounter

  • W56.82XD—

    Struck by other nonvenomous marine animals, subsequent encounter

  • W56.82XS—

    Struck by other nonvenomous marine animals, sequela

  • W56.89—

    Other contact with other nonvenomous marine animals

  • W56.89XA—

    Other contact with other nonvenomous marine animals, initial encounter

  • W56.89XD—

    Other contact with other nonvenomous marine animals, subsequent encounter

  • W56.89XS—

    Other contact with other nonvenomous marine animals, sequela

  • W57—

    Bitten or stung by nonvenomous insect and other nonvenomous arthropods

  • W57.XXXA—

    Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter

  • W57.XXXD—

    Bitten or stung by nonvenomous insect and other nonvenomous arthropods, subsequent encounter

  • W57.XXXS—

    Bitten or stung by nonvenomous insect and other nonvenomous arthropods, sequela

  • W58—

    Contact with crocodile or alligator

  • W58.0—

    Contact with alligator

  • W58.01—

    Bitten by alligator

  • W58.01XA—

    Bitten by alligator, initial encounter

  • W58.01XD—

    Bitten by alligator, subsequent encounter

  • W58.01XS—

    Bitten by alligator, sequela

  • W58.02—

    Struck by alligator

  • W58.02XA—

    Struck by alligator, initial encounter

  • W58.02XD—

    Struck by alligator, subsequent encounter

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