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  5. Contact with other nonvenomous reptiles (W59)

Contact with other nonvenomous reptiles (W59)

The ICD-10 code W59 category is used to classify injuries caused by contact with nonvenomous reptiles, including lizards, snakes, turtles, and other reptiles. These codes help specify the nature of the contact, such as being bitten, struck, crushed, or other types of interactions.

This section covers a range of situations where a person may experience harm from nonvenomous reptiles, with codes like W59.01XA for an initial encounter after a lizard bite, and W59.11XA for a first visit related to a nonvenomous snake bite. Terms such as “lizard bite,” “snake bite,” and “bite of reptile” are synonyms linked to specific codes, helping medical coders select the right classification. It also includes encounters following the initial treatment (subsequent encounter) and complications related to these injuries (sequela). For example, W59.21XA indicates a first treatment for a bite of turtle. Additional codes detail other contacts like being struck or crushed by these reptiles and specify initial or follow-up care. This coding ensures clear documentation of these unique reptile-related injuries in healthcare records.

  • External causes of morbidity and mortality (V01–Y99)

    • Exposure to animate mechanical forces (W50-W64)

        • Contact with other nonvenomous reptiles (W59)

        • W59 Contact with other nonvenomous reptiles
        • W59.0 Contact with nonvenomous lizards
        • W59.01 Bitten by nonvenomous lizards
        • W59.01XA Bitten by nonvenomous lizards, initial encounter
        • W59.01XD Bitten by nonvenomous lizards, subsequent encounter
        • W59.01XS Bitten by nonvenomous lizards, sequela
        • W59.02 Struck by nonvenomous lizards
        • W59.02XA Struck by nonvenomous lizards, initial encounter
        • W59.02XD Struck by nonvenomous lizards, subsequent encounter
        • W59.02XS Struck by nonvenomous lizards, sequela
        • W59.09 Other contact with nonvenomous lizards
        • W59.09XA Other contact with nonvenomous lizards, initial encounter
        • W59.09XD Other contact with nonvenomous lizards, subsequent encounter
        • W59.09XS Other contact with nonvenomous lizards, sequela
        • W59.1 Contact with nonvenomous snakes
        • W59.11 Bitten by nonvenomous snake
        • W59.11XA Bitten by nonvenomous snake, initial encounter
        • W59.11XD Bitten by nonvenomous snake, subsequent encounter
        • W59.11XS Bitten by nonvenomous snake, sequela
        • W59.12 Struck by nonvenomous snake
        • W59.12XA Struck by nonvenomous snake, initial encounter
        • W59.12XD Struck by nonvenomous snake, subsequent encounter
        • W59.12XS Struck by nonvenomous snake, sequela
        • W59.13 Crushed by nonvenomous snake
        • W59.13XA Crushed by nonvenomous snake, initial encounter
        • W59.13XD Crushed by nonvenomous snake, subsequent encounter
        • W59.13XS Crushed by nonvenomous snake, sequela
        • W59.19 Other contact with nonvenomous snake
        • W59.19XA Other contact with nonvenomous snake, initial encounter
        • W59.19XD Other contact with nonvenomous snake, subsequent encounter
        • W59.19XS Other contact with nonvenomous snake, sequela
        • W59.2 Contact with turtles
        • W59.21 Bitten by turtle
        • W59.21XA Bitten by turtle, initial encounter
        • W59.21XD Bitten by turtle, subsequent encounter
        • W59.21XS Bitten by turtle, sequela
        • W59.22 Struck by turtle
        • W59.22XA Struck by turtle, initial encounter
        • W59.22XD Struck by turtle, subsequent encounter
        • W59.22XS Struck by turtle, sequela
        • W59.29 Other contact with turtle
        • W59.29XA Other contact with turtle, initial encounter
        • W59.29XD Other contact with turtle, subsequent encounter
        • W59.29XS Other contact with turtle, sequela
        • W59.8 Contact with other nonvenomous reptiles
        • W59.81 Bitten by other nonvenomous reptiles
        • W59.81XA Bitten by other nonvenomous reptiles, initial encounter
        • W59.81XD Bitten by other nonvenomous reptiles, subsequent encounter
        • W59.81XS Bitten by other nonvenomous reptiles, sequela
        • W59.82 Struck by other nonvenomous reptiles
        • W59.82XA Struck by other nonvenomous reptiles, initial encounter
        • W59.82XD Struck by other nonvenomous reptiles, subsequent encounter
        • W59.82XS Struck by other nonvenomous reptiles, sequela
        • W59.83 Crushed by other nonvenomous reptiles
        • W59.83XA Crushed by other nonvenomous reptiles, initial encounter
        • W59.83XD Crushed by other nonvenomous reptiles, subsequent encounter
        • W59.83XS Crushed by other nonvenomous reptiles, sequela
        • W59.89 Other contact with other nonvenomous reptiles
        • W59.89XA Other contact with other nonvenomous reptiles, initial encounter
        • W59.89XD Other contact with other nonvenomous reptiles, subsequent encounter
        • W59.89XS Other contact with other nonvenomous reptiles, sequela

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • The appropriate 7th character is to be added to each code from category W59

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela