W21.00 Struck by hit or thrown ball, unspecified type

Non-billable ICD-10-CM code.

Applies from W21 Striking against or struck by sports equipment

Excludes1 (never code together)

• assault with sports equipment (Y08.0-)
• striking against or struck by sports equipment with subsequent fall (W18.01)

7th character note

• The appropriate 7th character is to be added to each code from category W21

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Code annotations containing back-references to W21.00

Back-references to W21

• Type 1 Excludes: W20 Struck by thrown, projected or falling object ("struck by thrown sports equipment (W21.-)")
• Type 1 Excludes: W20.8 Other cause of strike by thrown, projected or falling object ("struck by thrown sports equipment (W21.-)")
• Type 2 Excludes: W45 Foreign body or object entering through skin ("struck by objects (W20-W22)")
• Type 1 Excludes: W50 Accidental hit, strike, kick, twist, bite or scratch by another person ("struck by objects (W20-W22)")

Diagnosis Index entries for W21.00

• Struck (accidentally) by › ball (hit) (thrown)
• Struck (accidentally) by › object › projected › in sports › ball
• Struck (accidentally) by › object › thrown › in sports › ball
• Struck (accidentally) by › sports equipment › ball

Nearby codes

• W21 Striking against or struck by sports equipment
• W21.0 Struck by hit or thrown ball
• W21.00 Struck by hit or thrown ball, unspecified type (this code)
• W21.00XA Struck by hit or thrown ball, unspecified type, initial encounter
• W21.00XD Struck by hit or thrown ball, unspecified type, subsequent encounter
• W21.00XS Struck by hit or thrown ball, unspecified type, sequela
• W21.01 Struck by football
• W21.01XA Struck by football, initial encounter