2026 ICD-10-CM Diagnosis Code X05Exposure to ignition or melting of nightwear
X05 is a non-billable ICD-10-CM category code for exposure to ignition or melting of nightwear, so it cannot be submitted on claims. Use a more specific code from this category instead, such as X05.XXXA, X05.XXXD, and X05.XXXS.
Code Identity
Code Classification
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 2 Excludes
- exposure to uncontrolled fire in building or structure X00
- exposure to uncontrolled fire, not in building or structure X01
- exposure to controlled fire in building or structure X02
- exposure to controlled fire, not in building or structure X03
- exposure to ignition of highly flammable materials X04
7th Character Note
- The appropriate 7th character is to be added to code X05
7th Character
- A - initial encounter
- D - subsequent encounter
- S - sequela
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
Indicates that a seventh character is to be assigned to codes in a subcategory.
Code HistoryHistory
Questions About X05Overview
Is X05 (Exposure to ignition or melting of nightwear) a billable code?
No. This is a category header that groups the codes for exposure to ignition or melting of nightwear, and headers cannot be submitted on claims. Claims for exposure to ignition or melting of nightwear need a more specific code from this category, such as X05.XXXA, X05.XXXD, and X05.XXXS.
