W21.00XD — Struck by hit or thrown ball, unspecified type, subsequent encounter
Is W21.00XD billable?
Yes, but W21.00XD is an unspecified code. W21.00XD is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, W21.00XD is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting W21.00XD — the more specific alternatives are listed below.
More specific alternatives
- W21.01XDStruck by football, subsequent encounter
- W21.02XDStruck by soccer ball, subsequent encounter
- W21.03XDStruck by baseball, subsequent encounter
- W21.04XDStruck by golf ball, subsequent encounter
- W21.05XDStruck by basketball, subsequent encounter
- W21.06XDStruck by volleyball, subsequent encounter
- W21.07XDStruck by softball, subsequent encounter
- W21.09XDStruck by other hit or thrown ball, subsequent encounter
W21.00XD at a glance
| Code | W21.00XD |
|---|---|
| Description | Struck by hit or thrown ball, unspecified type, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in W21.00XD?
In W21.00XD, the 7th character D means subsequent encounter. The 7th character is required for W21.00XD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W21.00XD listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W21.00, the nearest indexed parent of W21.00XD. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Struckby › ball (accidentally)
- Struckby › sports equipment › ball (accidentally)
- Struckby › object › projected › in sports › ball (accidentally)
- Struckby › object › thrown › in sports › ball (accidentally)
Excludes1 — never code together — inherited from W20-W49
The conditions below can never be reported together with W21.00XD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from W21
The conditions below can never be reported together with W21.00XD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
How long has W21.00XD existed?
W21.00XD has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.