2026 ICD-10-CM Diagnosis Code X19Contact with other heat and hot substances
X19 is a non-billable ICD-10-CM category code for contact with other heat and hot substances, so it cannot be submitted on claims. Use a more specific code from this category instead, such as X19.XXXA, X19.XXXD, and X19.XXXS.
Code Identity
Code Classification
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
7th Character Note
- The appropriate 7th character is to be added to code X19
7th Character
- A - initial encounter
- D - subsequent encounter
- S - sequela
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
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 X19Overview
Is X19 (Contact with other heat and hot substances) a billable code?
No. This is a category header that groups the codes for contact with other heat and hot substances, and headers cannot be submitted on claims. Claims for contact with other heat and hot substances need a more specific code from this category, such as X19.XXXA, X19.XXXD, and X19.XXXS.
