X04 — Exposure to ignition of highly flammable material
Is X04 billable?
No — X04 is a non-billable header code. X04 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath X04.
X04 at a glance
| Code | X04 |
|---|---|
| Description | Exposure to ignition of highly flammable material |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is X04 listed in the External Cause Index?
These are the routes through the External Cause of Injuries Index that lead to X04 — how the injury happened, rather than what the injury was.
- Ignition › benzine (accidental)
- Ignition › ether (accidental)
- Ignition › gasoline (accidental)
- Ignition › kerosene (accidental)
- Ignition › paraffin (accidental)
- Ignition › petrol (accidental)
- Exposure › fire, flames › ignition of highly flammable material (to)
- Ignition › apparel › from highly flammable material (accidental)
- Ignition › material › highly flammable with secondary explosion (accidental)
- Ignition › clothes, clothing NEC › from › highly flammable material (accidental)
Excludes2 — not included here
The conditions below are not part of X04, but a patient may have both at the same time. When documentation supports it, X04 and the excluded code may both be reported.
Inclusion terms
Alternative wording in documentation that is classified to X04.
- Exposure to ignition of gasoline
- Exposure to ignition of kerosene
- Exposure to ignition of petrol
Excludes1 — never code together — inherited from X00-X08
The conditions below can never be reported together with X04 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 X04, but a patient may have both at the same time. When documentation supports it, X04 and the excluded code may both be reported.
What codes fall under X04? (3)
How long has X04 existed?
X04 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.