W21.09Header code — not billable
Struck by other hit or thrown ball
- Chapter
- 20. External causes of morbidity
- Category
- W21
- Effective date
- October 1, 2026
Related codes in category W21
W21Striking against or struck by sports equipmentW21.0Struck by hit or thrown ballW21.00Struck by hit or thrown ball, unspecified typeW21.00XAStruck by hit or thrown ball, unspecified type, init encntrYesW21.00XDStruck by hit or thrown ball, unspecified type, subs encntrYesW21.00XSStruck by hit or thrown ball, unspecified type, sequelaYesW21.01Struck by footballW21.01XAStruck by football, initial encounterYesW21.01XDStruck by football, subsequent encounterYesW21.01XSStruck by football, sequelaYesW21.02Struck by soccer ballW21.02XAStruck by soccer ball, initial encounterYes
Frequently asked questions
What is ICD-10 code W21.09?
W21.09 is an ICD-10-CM diagnosis code for Struck by other hit or thrown ball.
Is W21.09 a billable code?
No. W21.09 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is W21.09 in?
W21.09 falls under Chapter 20: External causes of morbidity.
When did W21.09 become effective?
W21.09 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to W21.09?
W21.09 belongs to category W21, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.