W56Header code — not billable
Contact with nonvenomous marine animal
- Chapter
- 20. External causes of morbidity
- Category
- W56
- Effective date
- October 1, 2026
Related codes in category W56
W56.0Contact with dolphinW56.01Bitten by dolphinW56.01XABitten by dolphin, initial encounterYesW56.01XDBitten by dolphin, subsequent encounterYesW56.01XSBitten by dolphin, sequelaYesW56.02Struck by dolphinW56.02XAStruck by dolphin, initial encounterYesW56.02XDStruck by dolphin, subsequent encounterYesW56.02XSStruck by dolphin, sequelaYesW56.09Other contact with dolphinW56.09XAOther contact with dolphin, initial encounterYesW56.09XDOther contact with dolphin, subsequent encounterYes
Frequently asked questions
What is ICD-10 code W56?
W56 is an ICD-10-CM diagnosis code for Contact with nonvenomous marine animal.
Is W56 a billable code?
No. W56 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is W56 in?
W56 falls under Chapter 20: External causes of morbidity.
When did W56 become effective?
W56 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to W56?
W56 belongs to category W56, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.