W21

Striking against or struck by sports equipment

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027

SourceCMS ICD-10-CM order file

ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODE	DESCRIPTION	TYPE
W21.0	Struck by hit or thrown ball	Category
W21.00	Struck by hit or thrown ball, unspecified type	Category
W21.00XA	Struck by hit or thrown ball, unspecified type, initial encounter	Billable
W21.00XD	Struck by hit or thrown ball, unspecified type, subsequent encounter	Billable
W21.00XS	Struck by hit or thrown ball, unspecified type, sequela	Billable
W21.01	Struck by football	Category
W21.01XA	Struck by football, initial encounter	Billable
W21.01XD	Struck by football, subsequent encounter	Billable
W21.01XS	Struck by football, sequela	Billable
W21.02	Struck by soccer ball	Category
W21.02XA	Struck by soccer ball, initial encounter	Billable
W21.02XD	Struck by soccer ball, subsequent encounter	Billable
W21.02XS	Struck by soccer ball, sequela	Billable
W21.03	Struck by baseball	Category
W21.03XA	Struck by baseball, initial encounter	Billable
W21.03XD	Struck by baseball, subsequent encounter	Billable
W21.03XS	Struck by baseball, sequela	Billable
W21.04	Struck by golf ball	Category
W21.04XA	Struck by golf ball, initial encounter	Billable
W21.04XD	Struck by golf ball, subsequent encounter	Billable
W21.04XS	Struck by golf ball, sequela	Billable
W21.05	Struck by basketball	Category
W21.05XA	Struck by basketball, initial encounter	Billable
W21.05XD	Struck by basketball, subsequent encounter	Billable
W21.05XS	Struck by basketball, sequela	Billable
W21.06	Struck by volleyball	Category
W21.06XA	Struck by volleyball, initial encounter	Billable
W21.06XD	Struck by volleyball, subsequent encounter	Billable
W21.06XS	Struck by volleyball, sequela	Billable
W21.07	Struck by softball	Category

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.