Is X11.1 a billable ICD-10-CM code?

No. X11.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does X11.1 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Contact with heat and hot substances (X10-X19).

What cannot be coded together with X11.1?

X11.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above X11.1 (X11) and apply to it just the same.

X11.1

X11.1 — Contact with running hot water

Non-billable headerICD-10-CM

X11.1 is a non-billable header ICD-10-CM code for contact with running hot water. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category X11

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Contact with hot water running out of hose
Contact with hot water running out of tap

Excludes1 inherited from the categories above X11.1

These are not written on X11.1, but they bind it: a note on a category applies to every code beneath it. Billing X11.1 with anything listed here is a denial.

Written on X11 — Contact with hot tap-water

contact with water heated on stove (X12)

Other codes that can never be billed with X11.1

These codes carry an Excludes1 note pointing at X11.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading X11.1 alone.

X11.0Contact with hot water in bath or tub
X11.0XXAContact with hot water in bath or tub, initial encounter
X11.0XXDContact with hot water in bath or tub, subsequent encounter
X11.0XXSContact with hot water in bath or tub, sequela

Risk adjustment

X11.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How X11.1 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to X11.1.

Contact›with›hot›tap-water›running
Contact›with›hot›water›running

Code history

X11.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead X11.1

3 child codes. Green means billable.

Related codes at this level

Codes that share X11. If X11.1 is not quite right, the correct code is usually one of these.

Questions about X11.1

Is X11.1 a billable ICD-10-CM code?: No. X11.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does X11.1 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Contact with heat and hot substances (X10-X19).
What cannot be coded together with X11.1?: X11.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above X11.1 (X11) and apply to it just the same.