2025
ICD-10-CM
Diagnosis
Code

W55 Contact with other mammals

  • Non-billable
  • 2016–2025

W55 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Contact with other mammals.

Includes

  • Contact with saliva, feces or urine of mammal

Type 1 excludes

  • Animal being ridden- see transport accidents

  • Bitten or struck by dog (W54)

  • Bitten or struck by rodent (W53.-)

  • Contact with marine mammals (W56.-)

Seventh character note

  • The appropriate 7th character is to be added to each code from category W55

Seventh character extensions

  • A: initial encounter

  • D: subsequent encounter

  • S: sequela

Codes

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    No changes

  9. 2017

    No changes

  10. 2016

    New code