W53.21XD
✓ Billable
Bitten by squirrel, subsequent encounter
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W53.21XD
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 W53.21XD?
ICD-10-CM code W53.21XD represents Bitten by squirrel, subsequent encounter. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W53.21XD billable?
Yes. W53.21XD is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is W53.21XD in?
W53.21XD belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W53 category
W53
Contact with rodent
Non-billable
W53.0
Contact with mouse
Non-billable
W53.1
Contact with rat
Non-billable
W53.2
Contact with squirrel
Non-billable
W53.8
Contact with other rodent
Non-billable
W53.01
Bitten by mouse
Non-billable
W53.09
Other contact with mouse
Non-billable
W53.11
Bitten by rat
Non-billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →