W21.4
Non-billableStriking against diving board
Striking against diving board
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)
Use Additional Code
Additional codes that should follow this code
- code for subsequent falling into water, if applicable (W16.-)
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for striking against diving board?
The ICD-10-CM code for striking against diving board is W21.4. The full clinical description is "Striking against diving board". W21.4 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code W21.4 mean?
ICD-10-CM code W21.4 represents "Striking against diving board". It is classified under Chapter 21: External Causes of Morbidity and is a non-billable header code. Use a more specific child code for billing purposes.
Is W21.4 a billable code?
No, W21.4 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under W21.4.
What chapter is W21.4 in?
W21.4 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W21.4?
W21.4 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 W21.4?
W21.4 has 3 child codes, including: W21.4XXA (Striking against diving board, initial encounter), W21.4XXD (Striking against diving board, subsequent encounter), W21.4XXS (Striking against diving board, sequela).
Are additional codes required with W21.4?
Yes, when using W21.4 you should also code: code for subsequent falling into water, if applicable (W16.-).
What are the UMLS CUIs for W21.4?
W21.4 is linked to 1 UMLS Concept Unique Identifier: C2904106. 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.