X02.1XXS — Exposure to smoke in controlled fire in building or structure, sequela
Is X02.1XXS billable?
Yes — X02.1XXS is billable for FY2027. X02.1XXS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. X02.1XXS may be submitted for encounters from October 1, 2026 through September 30, 2027.
X02.1XXS at a glance
| Code | X02.1XXS |
|---|---|
| Description | Exposure to smoke in controlled fire in building or structure, 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 X02.1XXS?
In X02.1XXS, the 7th character S means sequela. The 7th character is required for X02.1XXS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is X02.1XXS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under X02.1, the nearest indexed parent of X02.1XXS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Exposure › fire, flames › controlled › building or structure › with › smoke inhalation (to)
Excludes1 — never code together — inherited from X00-X08
The conditions below can never be reported together with X02.1XXS on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- arson (X97)
Excludes2 — not included here — inherited from X00-X08
The conditions below are not part of X02.1XXS, but a patient may have both at the same time. When documentation supports it, X02.1XXS and the excluded code may both be reported.
How long has X02.1XXS existed?
X02.1XXS 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.