W21
Non-billableStriking against or struck by sports equipment
Striking against or struck by sports equipment
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- assault (X92-Y09)
- contact or collision with animals or persons (W50-W64)
- exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)
- intentional self-harm (X71-X83)
- assault with sports equipment (Y08.0-)
- striking against or struck by sports equipment with subsequent fall (W18.01)
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (7)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code W21?
ICD-10-CM code W21 represents "Striking against or struck by sports equipment". It is a non-billable header code — use a more specific child code for billing purposes.
Is W21 a billable code?
No, W21 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 7 child codes under W21.
What chapter is W21 in?
W21 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W21?
W21 has Excludes1 notes indicating codes that cannot be used together with it, including: assault (X92-Y09); contact or collision with animals or persons (W50-W64); exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-); and 3 more.
What are the subcategories under W21?
W21 has 7 child codes, including: W21.0 (Struck by hit or thrown ball), W21.1 (Struck by bat, racquet or club), W21.2 (Struck by hockey stick or puck), W21.3 (Struck by sports foot wear), and 3 more.
What are the UMLS CUIs for W21?
W21 is linked to 1 UMLS Concept Unique Identifier: C0337263. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.