Y04.2XXA — Assault by strike against or bumped into by another person, initial encounter
Is Y04.2XXA billable?
Yes — Y04.2XXA is billable for FY2027. Y04.2XXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Y04.2XXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
Y04.2XXA at a glance
| Code | Y04.2XXA |
|---|---|
| Description | Assault by strike against or bumped into by another person, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in Y04.2XXA?
In Y04.2XXA, the 7th character A means initial encounter. The 7th character is required for Y04.2XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is Y04.2XXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under Y04.2, the nearest indexed parent of Y04.2XXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Assault › bodily force › bumping into (homicidal) (by) (in)
- Assault › striking against › other person (homicidal) (by) (in)
- Bumping against, into › person › assault (accidentally)
- Bumping against, into › person › homicide (accidentally)
- Striking against › person › assault
- Striking against › person › homicide
- Struckby › other person › assault (accidentally)
- Struckby › other person › homicide (accidentally)
Excludes1 — never code together — inherited from X92-Y09
The conditions below can never be reported together with Y04.2XXA 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 Y04
The conditions below can never be reported together with Y04.2XXA 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 Y04.2XXA existed?
Y04.2XXA 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.