W21.9XXS — Striking against or struck by unspecified sports equipment, sequela
Is W21.9XXS billable?
Yes, but W21.9XXS is an unspecified code. W21.9XXS is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, W21.9XXS 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 W21.9XXS — the more specific alternatives are listed below.
More specific alternatives
W21.9XXS at a glance
| Code | W21.9XXS |
|---|---|
| Description | Striking against or struck by unspecified sports equipment, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in W21.9XXS?
In W21.9XXS, the 7th character S means sequela. The 7th character is required for W21.9XXS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W21.9XXS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W21.9, the nearest indexed parent of W21.9XXS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Bumping against, into › sports equipment (accidentally)
- Stepping on › sports equipment
- Striking against › sports equipment
- Struckby › sports equipment (accidentally)
- Bumping against, into › object NEC › sports equipment (accidentally)
- Contact › with › sports equipment (accidental)
- Kicking › against › sports equipment
- Stepping on › object › sports equipment
Excludes1 — never code together — inherited from W20-W49
The conditions below can never be reported together with W21.9XXS 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 W21.9XXS 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 W21.9XXS existed?
W21.9XXS 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.