X11 – Contact with hot tap-water

ICD-10-CM 2027 diagnosis code · Contact with heat and hot substances

Non-billable header

ICD-10-CM code X11

Code: X11 (claims format: X11)
Description: Contact with hot tap-water
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 20. External causes of morbidity (V00-Y99)
Block: X10-X19 Contact with heat and hot substances

Billable codes under X11

X11 is a header code and cannot be used on claims. Choose the most specific code:

X11.0 – Contact with hot water in bath or tubHeader (more codes below)
X11.1 – Contact with running hot waterHeader (more codes below)
X11.8 – Contact with other hot tap-waterHeader (more codes below)

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes for X11

Includes:

contact with boiling tap-water
contact with boiling water NOS

Excludes1 (not coded here):

contact with water heated on stove (X12)

7th character note:

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

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block X10-X19

Excludes1 (not coded here):

exposure to excessive natural heat (X30)
exposure to fire and flames (X00-X08)

Frequently asked questions

What is ICD-10 code X11?

X11 is the ICD-10-CM code for contact with hot tap-water, in the block X10-X19 (Contact with heat and hot substances).

Is X11 a billable code?

No. X11 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.