W21.81XD
✓ Billable
Striking against or struck by football helmet, subsequent encounter
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W21.81XD
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 W21.81XD?
ICD-10-CM code W21.81XD represents Striking against or struck by football helmet, subsequent encounter. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W21.81XD billable?
Yes. W21.81XD is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is W21.81XD in?
W21.81XD belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W21 category
W21
Striking against or struck by sports equipment
Non-billable
W21.0
Struck by hit or thrown ball
Non-billable
W21.1
Struck by bat, racquet or club
Non-billable
W21.2
Struck by hockey stick or puck
Non-billable
W21.3
Struck by sports foot wear
Non-billable
W21.4
Striking against diving board
Non-billable
W21.8
Striking against or struck by other sports equipment
Non-billable
W21.9
Striking against or struck by unspecified sports equipment
Non-billable
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