W55.81XS
✓ Billable
Bitten by other mammals, sequela
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W55.81XS
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code W55.81XS?
ICD-10-CM code W55.81XS represents Bitten by other mammals, sequela. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W55.81XS billable?
Yes. W55.81XS is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is W55.81XS in?
W55.81XS belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W55 category
W55
Contact with other mammals
Non-billable
W55.0
Contact with cat
Non-billable
W55.1
Contact with horse
Non-billable
W55.2
Contact with cow
Non-billable
W55.3
Contact with other hoof stock
Non-billable
W55.4
Contact with pig
Non-billable
W55.5
Contact with raccoon
Non-billable
W55.8
Contact with other mammals
Non-billable
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