2026 ICD-10-CM Diagnosis Code W58Contact with crocodile or alligator

ICD-10-CM Codes›V01–Y99›W50-W64›W58

ICD-10-CM W58
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

W58 is a non-billable ICD-10-CM category code for contact with crocodile or alligator, so it cannot be submitted on claims. Use a more specific code from this category instead, such as W58.01XA, W58.01XD, W58.01XS, and W58.02XA.

Code Identity

ICD-10-CM Code
W58
Billable Status
No — Non-Billable Category
Code Describes
Contact with crocodile or alligator
Chapter
W50-W64
Exposure to animate mechanical forces

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionW50-W64Exposure to animate mechanical forces
CategoryW58Contact with crocodile or alligator
This CodeW58Contact with crocodile or alligator

Specific Coding for Contact with crocodile or alligatorOverview

Non-specific codes like W58 require more characters. Use one of these billable codes instead:

  • W58.0 for Contact with alligator

  • W58.01 for Bitten by alligator

  • W58.02 for Struck by alligator

  • W58.03 for Crushed by alligator

  • W58.09 for Other contact with alligator

  • W58.1 for Contact with crocodile

  • W58.11 for Bitten by crocodile

  • W58.12 for Struck by crocodile

  • W58.13 for Crushed by crocodile

  • W58.19 for Other contact with crocodile

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

7th Character Note

  • The appropriate 7th character is to be added to each code from category W58

7th Character

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

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About W58Overview

Is W58 (Contact with crocodile or alligator) a billable code?

No. This is a category header that groups the codes for contact with crocodile or alligator, and headers cannot be submitted on claims. Claims for contact with crocodile or alligator need a more specific code from this category, such as W58.01XA, W58.01XD, and W58.01XS.