ICD-10-CM › V00-Y99 › X00-X08 › X codes › X04

X04

Exposure to ignition of highly flammable material

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • X04.XXXA Exposure to ignition of highly flammable material, initial encounter
  • X04.XXXD Exposure to ignition of highly flammable material, subsequent encounter
  • X04.XXXS Exposure to ignition of highly flammable material, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2014 Added to the draft code set draft Exposure to ignition of highly flammable material

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Seventh character required

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

Excludes2 - not included here

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

Also known as

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

Inherited from the X00-X08 section Exposure to smoke, fire and flames (X00-X08)

Excludes1 - never coded here

  • arson (X97)

Excludes2 - not included here

  • explosions (W35-W40)
  • lightning (T75.0-)
  • transport accident (V01-V99)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.