X04
ICD-10Non-billable categoryExposure to ignition of highly flammable material
Official ICD-10-CM descriptor (FY2026)
Exposure to ignition of highly flammable material
X04 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Exposure to ignition of gasoline
- Exposure to ignition of kerosene
- Exposure to ignition of petrol
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- exposure to ignition or melting of nightwear (X05)
- exposure to ignition or melting of other clothing and apparel (X06)
7th character
- The appropriate 7th character is to be added to code X04
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.