ICD-10-CM category
W56 Contact with marine animal
W56 is a category, not a billable code. Report one of the 63 complete codes below.
W56.0…
9 codes
- W56.01XABitten by dolphin, initial encounter
- W56.01XDBitten by dolphin, subsequent encounter
- W56.01XSBitten by dolphin, sequela
- W56.02XAStruck by dolphin, initial encounter
- W56.02XDStruck by dolphin, subsequent encounter
- W56.02XSStruck by dolphin, sequela
- W56.09XAOther contact with dolphin, initial encounter
- W56.09XDOther contact with dolphin, subsequent encounter
- W56.09XSOther contact with dolphin, sequela
W56.1…
9 codes
- W56.11XABitten by sea lion, initial encounter
- W56.11XDBitten by sea lion, subsequent encounter
- W56.11XSBitten by sea lion, sequela
- W56.12XAStruck by sea lion, initial encounter
- W56.12XDStruck by sea lion, subsequent encounter
- W56.12XSStruck by sea lion, sequela
- W56.19XAOther contact with sea lion, initial encounter
- W56.19XDOther contact with sea lion, subsequent encounter
- W56.19XSOther contact with sea lion, sequela
W56.2…
9 codes
- W56.21XABitten by orca, initial encounter
- W56.21XDBitten by orca, subsequent encounter
- W56.21XSBitten by orca, sequela
- W56.22XAStruck by orca, initial encounter
- W56.22XDStruck by orca, subsequent encounter
- W56.22XSStruck by orca, sequela
- W56.29XAOther contact with orca, initial encounter
- W56.29XDOther contact with orca, subsequent encounter
- W56.29XSOther contact with orca, sequela
W56.3…
9 codes
- W56.31XABitten by other marine mammals, initial encounter
- W56.31XDBitten by other marine mammals, subsequent encounter
- W56.31XSBitten by other marine mammals, sequela
- W56.32XAStruck by other marine mammals, initial encounter
- W56.32XDStruck by other marine mammals, subsequent encounter
- W56.32XSStruck by other marine mammals, sequela
- W56.39XAOther contact with other marine mammals, initial encounter
- W56.39XDOther contact with other marine mammals, subsequent encounter
- W56.39XSOther contact with other marine mammals, sequela
W56.4…
9 codes
- W56.41XABitten by shark, initial encounter
- W56.41XDBitten by shark, subsequent encounter
- W56.41XSBitten by shark, sequela
- W56.42XAStruck by shark, initial encounter
- W56.42XDStruck by shark, subsequent encounter
- W56.42XSStruck by shark, sequela
- W56.49XAOther contact with shark, initial encounter
- W56.49XDOther contact with shark, subsequent encounter
- W56.49XSOther contact with shark, sequela
W56.5…
9 codes
- W56.51XABitten by other fish, initial encounter
- W56.51XDBitten by other fish, subsequent encounter
- W56.51XSBitten by other fish, sequela
- W56.52XAStruck by other fish, initial encounter
- W56.52XDStruck by other fish, subsequent encounter
- W56.52XSStruck by other fish, sequela
- W56.59XAOther contact with other fish, initial encounter
- W56.59XDOther contact with other fish, subsequent encounter
- W56.59XSOther contact with other fish, sequela
W56.8…
9 codes
- W56.81XABitten by other nonvenomous marine animals, initial encounter
- W56.81XDBitten by other nonvenomous marine animals, subsequent encounter
- W56.81XSBitten by other nonvenomous marine animals, sequela
- W56.82XAStruck by other nonvenomous marine animals, initial encounter
- W56.82XDStruck by other nonvenomous marine animals, subsequent encounter
- W56.82XSStruck by other nonvenomous marine animals, sequela
- W56.89XAOther contact with other nonvenomous marine animals, initial encounter
- W56.89XDOther contact with other nonvenomous marine animals, subsequent encounter
- W56.89XSOther contact with other nonvenomous marine animals, sequela
Outside the US? W56 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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