X04

Billable code

Exposure to ignition of highly flammable material

The ICD-10 code for exposure to ignition of highly flammable material is X04.

Clinical notes

Excludes2 (not included here)

An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case 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)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

Exposure to ignition of gasoline
Exposure to ignition of kerosene
Exposure to ignition of petrol

7th character definitions

These definitions specify what each valid 7th-character value means for codes in this category.

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7th character note

This category requires a 7th character to indicate additional clinical detail (e.g. encounter type: initial, subsequent, sequela). The code is incomplete without it.

The appropriate 7th character is to be added to code X04

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This category requires a 7th character. Documentation should clearly indicate the episode of care (initial encounter, subsequent encounter, or sequela).
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.