2027 ICD-10-CM Diagnosis Code X11Contact with hot tap-water

ICD-10-CM Codes›V01–Y99›X10-X19›X11

ICD-10-CM X11
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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

ICD-10-CM Code
X11
Billable Status
No — Non-Billable Category
Code Describes
Contact with hot tap-water
Short Description
Contact with hot tap-water
Same as the full description in the CMS dataset.
Chapter
X10-X19
Contact with heat and hot substances

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionX10-X19Contact with heat and hot substances
CategoryX11Contact with hot tap-water
This CodeX11Contact with hot tap-water

Specific Coding for Contact with hot tap-waterOverview

Non-specific codes like X11 require more characters. Use one of these billable codes instead:

  • X11.0 for Contact with hot water in bath or tub

  • X11.1 for Contact with running hot water

  • X11.8 for Contact with other hot tap-water

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to X11: its own notes plus those printed at block X10-X19 and Chapter 20. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • contact with boiling tap-water
  • contact with boiling water NOS

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On X11 itself
  • contact with water heated on stove (X12)
From Block X10-X19 Contact with heat and hot substances applies to 60 codes
  • exposure to excessive natural heat (X30)
  • exposure to fire and flames (X00-X08)

Notes

General instructions on how these codes are used.

From Chapter 20 (V00-Y99) External causes of morbidity and mortality applies to 7,461 codes
  • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category X11
Values for category X11 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About X11Overview

What is the ICD-10 code for contact with hot tap-water?

X11 is the ICD-10-CM category for contact with hot tap-water, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.

Can X11 be reported with X12?

Not as a rule. The Excludes1 note on X11 lists "contact with water heated on stove (X12)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).