Y08.89XA — Assault by other specified means, initial encounter
Is Y08.89XA billable?
Yes, but Y08.89XA is an unspecified code. Y08.89XA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, Y08.89XA 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 Y08.89XA.
Y08.89XA at a glance
| Code | Y08.89XA |
|---|---|
| Description | Assault by other specified means, 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 Y08.89XA?
In Y08.89XA, the 7th character A means initial encounter. The 7th character is required for Y08.89XA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is Y08.89XA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under Y08.89, the nearest indexed parent of Y08.89XA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Acid throwing (assault)
- Assault › caustic, corrosive substance (homicidal) (by) (in)
- Assault › specified means NEC (homicidal) (by) (in)
- Assault › burning, burnsNEC › acid (homicidal) (by) (in)
- Assault › burning, burnsNEC › caustic, corrosive substance (homicidal) (by) (in)
- Assault › burning, burnsNEC › vitriol (homicidal) (by) (in)
- Assault › injury › to child due to criminal abortion attempt NEC (homicidal) (by) (in)
- Exposure › cold › assault (to)
Excludes1 — never code together — inherited from X92-Y09
The conditions below can never be reported together with Y08.89XA 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 Y08.89XA existed?
Y08.89XA 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.