U.S. ICD-10-CM · FY 2027

X04 ICD-10-CM Code: Exposure to ignition of highly flammable material

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

X04

Exposure to ignition of highly flammable material

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where X04 sits

  1. 1

    Chapter 20

    External causes of morbidity (V00-Y99)

  2. 2

    Section

    Accidents (V00-X58)

  3. 3

    Category X04

    Exposure to ignition of highly flammable material

  4. 4

    Code X04

    Exposure to ignition of highly flammable material

More specific choices

Codes under X04

X04 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

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

Code first

No “code first” instruction is listed for X04.

Use additional code

No “use additional code” instruction is listed for X04.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for X04.

Excludes2

Conditions not included here that may be reported separately when present.

  • exposure to ignition or melting of nightwear (X05)
  • exposure to ignition or melting of other clothing and apparel (X06)

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code X04 mean?

X04 is the FY 2027 U.S. ICD-10-CM code for “Exposure to ignition of highly flammable material.”

Is X04 a billable or specific ICD-10-CM code?

No. X04 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is X04 located in ICD-10-CM?

X04 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Accidents (V00-X58) (V00–X58), under category X04, Exposure to ignition of highly flammable material.

What coding notes are listed for X04?

Its listed inclusion terms are Exposure to ignition of gasoline; Exposure to ignition of kerosene; Exposure to ignition of petrol. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: exposure to ignition or melting of nightwear (X05); exposure to ignition or melting of other clothing and apparel (X06).

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