ICD-10-CM 2027 diagnosis code

X17Contact with hot engines, machinery and tools

Not billable — use a more specific code

X17 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About X17

X17 is the ICD-10-CM diagnosis code for contact with hot engines, machinery and tools. It belongs to block X10-X19 (contact with heat and hot substances) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: X17.XXXA (initial encounter), X17.XXXD (subsequent encounter) and X17.XXXS (sequela).

Don't report X17 together with the conditions in its Excludes1 note: contact with hot heating appliances, radiators and pipes (X16) and contact with hot household appliances (X15).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under X17

Coding notes

Excludes1Not coded here — never report together with this code

contact with hot heating appliances, radiators and pipes (X16)
contact with hot household appliances (X15)

Notes that apply from higher levels

Instructions written at a parent level also apply to X17.

Broader instructions also apply from X10-X19 Contact with heat and hot substances and Chapter 20: External causes of morbidity.

Alphabetic index entries

12 entries

Terms in the official ICD-10-CM index that lead to X17.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about X17

Is X17 billable?: No. X17 is a header code. Report one of its more specific subcodes instead.