2026 ICD-10-CM Diagnosis Code X11Contact with hot tap-water
X11 is a non-billable ICD-10-CM category code for contact with hot tap-water, so it cannot be submitted on claims. Use a more specific code from this category instead, such as X11.0XXA, X11.0XXD, X11.0XXS, and X11.1XXA.
Code Identity
Code Classification
Specific Coding for Contact with hot tap-waterOverview
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Includes
- contact with boiling tap-water
- contact with boiling water NOS
Type 1 Excludes
- contact with water heated on stove X12
7th Character Note
- The appropriate 7th character is to be added to each code from category X11
7th Character
- A - initial encounter
- D - subsequent encounter
- S - sequela
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
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 X11Overview
Is X11 (Contact with hot tap-water) a billable code?
No. This is a category header that groups the codes for contact with hot tap-water, and headers cannot be submitted on claims. Claims for contact with hot tap-water need a more specific code from this category, such as X11.0XXA, X11.0XXD, and X11.0XXS.
