X00.0XXA — Exposure to flames in uncontrolled fire in building or structure, initial encounter
Is X00.0XXA billable?
Yes — X00.0XXA is billable for FY2027. X00.0XXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. X00.0XXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
X00.0XXA at a glance
| Code | X00.0XXA |
|---|---|
| Description | Exposure to flames in uncontrolled fire in building or structure, 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 X00.0XXA?
In X00.0XXA, the 7th character A means initial encounter. The 7th character is required for X00.0XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is X00.0XXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under X00.0, the nearest indexed parent of X00.0XXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Exposure › fire, flames › uncontrolled › in building or structure (to)
Excludes1 — never code together — inherited from X00-X08
The conditions below can never be reported together with X00.0XXA 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)
Code first — inherited from X00
The underlying condition below must be sequenced before X00.0XXA. X00.0XXA describes a manifestation and cannot be the principal or first-listed diagnosis.
- any associated cataclysm
Excludes2 — not included here — inherited from X00-X08
The conditions below are not part of X00.0XXA, but a patient may have both at the same time. When documentation supports it, X00.0XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from X00
The conditions below are not part of X00.0XXA, but a patient may have both at the same time. When documentation supports it, X00.0XXA and the excluded code may both be reported.
How long has X00.0XXA existed?
X00.0XXA 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.