ICD-10-CM W55: Contact with other mammals

ICD-10-CM Diagnosis Code (2025)

Official Description for W55

Contact with other mammals

Coding Notes & Guidelines for W55

Includes Notes

contact with saliva, feces or urine of mammal

Excludes1: Not Coded Here
  • animal being ridden- see transport accidents
  • bitten or struck by dog (W54)
  • bitten or struck by rodent (W53.-)
  • contact with marine mammals (W56.-)
Inclusion Terms

Contact with bull

Inclusion Terms

Gored by bull

Inclusion Terms
  • Contact with goats
  • Contact with sheep
Inclusion Terms
  • Gored by goat
  • Gored by ram
7th Character Guidance

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

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for W55):

W55.0 - Contact with cat W55.01 - Bitten by cat W55.03 - Scratched by cat W55.09 - Other contact with cat W55.1 - Contact with horse W55.11 - Bitten by horse W55.12 - Struck by horse W55.19 - Other contact with horse W55.2 - Contact with cow W55.21 - Bitten by cow W55.22 - Struck by cow W55.29 - Other contact with cow W55.3 - Contact with other hoof stock W55.31 - Bitten by other hoof stock W55.32 - Struck by other hoof stock W55.39 - Other contact with other hoof stock W55.4 - Contact with pig W55.41 - Bitten by pig W55.42 - Struck by pig W55.49 - Other contact with pig W55.5 - Contact with raccoon W55.51 - Bitten by raccoon W55.52 - Struck by raccoon W55.59 - Other contact with raccoon W55.8 - Contact with other mammals W55.81 - Bitten by other mammals W55.82 - Struck by other mammals W55.89 - Other contact with other mammals

About ICD-10-CM Code W55 (Contact with other mammals)

ICD-10-CM code W55 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM W55 became effective on October 1, 2024.

This page provides detailed information about W55 - Contact with other mammals. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Contact with other mammals.