W21
W21: Striking against or struck by sports equipment
Non-billable headerICD-10-CM
W21 is a non-billable header ICD-10-CM code for striking against or struck by sports equipment. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category W21
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with W21
Their own Excludes1 notes name this code, so the conflict is not listed above.
- W20Struck by thrown, projected or falling object
- W20.8Other cause of strike by thrown, projected or falling object
- W20.8XXAOther cause of strike by thrown, projected or falling object, initial encounter
- W20.8XXDOther cause of strike by thrown, projected or falling object, subsequent encounter
- W20.8XXSOther cause of strike by thrown, projected or falling object, sequela
- W22.0Striking against stationary object
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead W21
7 child codes. Green means billable.