X98.9XXS — Assault by unspecified hot objects, sequela
Is X98.9XXS billable?
Yes, but X98.9XXS is an unspecified code. X98.9XXS is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, X98.9XXS 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 X98.9XXS — the more specific alternatives are listed below.
X98.9XXS at a glance
| Code | X98.9XXS |
|---|---|
| Description | Assault by unspecified hot objects, 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 X98.9XXS?
In X98.9XXS, the 7th character S means sequela. The 7th character is required for X98.9XXS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is X98.9XXS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under X98.9, the nearest indexed parent of X98.9XXS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Assault › burning, burnsNEC › hot object (homicidal) (by) (in)
Excludes1 — never code together — inherited from X92-Y09
The conditions below can never be reported together with X98.9XXS 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 X98.9XXS existed?
X98.9XXS 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.