W55 ICD-10-CM Code: Contact with other mammals
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
W55Contact with other mammals
ICD-10-CM diagnosis code · United States clinical modification
Where W55 sits
- 1
Chapter 20
External causes of morbidity (V00-Y99)
- 2
Section
Accidents (V00-X58)
- 3
Category W55
Contact with other mammals
- 4
Code W55
Contact with other mammals
Codes under W55
W55 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for W55.
Code first
No “code first” instruction is listed for W55.
Use additional code
No “use additional code” instruction is listed for W55.
Excludes1
Conditions that should not be reported together with this code.
- animal being ridden- see transport accidents
- bitten or struck by dog (W54)
- bitten or struck by rodent (W53.-)
- contact with marine mammals (W56.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for W55.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code W55 mean?
W55 is the FY 2027 U.S. ICD-10-CM code for “Contact with other mammals.”
Is W55 a billable or specific ICD-10-CM code?
No. W55 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is W55 located in ICD-10-CM?
W55 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Accidents (V00-X58) (V00–X58), under category W55, Contact with other mammals.
What coding notes are listed for W55?
No inclusion terms are listed for W55 in this reference record. No code-first instruction is listed. Excludes1 notes: animal being ridden- see transport accidents; bitten or struck by dog (W54); bitten or struck by rodent (W53.-); contact with marine mammals (W56.-). No Excludes2 note is listed.