2026 ICD-10-CM Diagnosis Code W53Contact with rodent

ICD-10-CM Codes›V01–Y99›W50-W64›W53

ICD-10-CM W53
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

W53 is a non-billable ICD-10-CM category code for contact with rodent, so it cannot be submitted on claims. Use a more specific code from this category instead, such as W53.01XA, W53.01XD, W53.01XS, and W53.09XA.

Code Identity

ICD-10-CM Code
W53
Billable Status
No — Non-Billable Category
Code Describes
Contact with rodent
Chapter
W50-W64
Exposure to animate mechanical forces

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionW50-W64Exposure to animate mechanical forces
CategoryW53Contact with rodent
This CodeW53Contact with rodent

Specific Coding for Contact with rodentOverview

Non-specific codes like W53 require more characters. Use one of these billable codes instead:

  • W53.0 for Contact with mouse

  • W53.01 for Bitten by mouse

  • W53.09 for Other contact with mouse

  • W53.1 for Contact with rat

  • W53.11 for Bitten by rat

  • W53.19 for Other contact with rat

  • W53.2 for Contact with squirrel

  • W53.21 for Bitten by squirrel

  • W53.29 for Other contact with squirrel

  • W53.8 for Contact with other rodent

  • W53.81 for Bitten by other rodent

  • W53.89 for Other contact with other rodent

Tabular List NotesGuidance

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

Includes

  • contact with saliva, feces or urine of rodent

7th Character Note

  • The appropriate 7th character is to be added to each code from category W53

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 W53Overview

Is W53 (Contact with rodent) a billable code?

No. This is a category header that groups the codes for contact with rodent, and headers cannot be submitted on claims. Claims for contact with rodent need a more specific code from this category, such as W53.01XA, W53.01XD, and W53.01XS.