MCMCB Pro
X17

X17Contact with hot engines, machinery and tools

Non-billable headerICD-10-CM

X17 is a non-billable header ICD-10-CM code for contact with hot engines, machinery and tools. 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 code X17

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Risk adjustment

X17 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 X17 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 X17.

  • Burn, burned, burningengine(hot)
  • Burn, burned, burningmachinery(hot)
  • Burn, burned, burningtool(hot)
  • Burn, burned, burninghotengine
  • Burn, burned, burninghotmachinery
  • Burn, burned, burninghottool
  • Contactwithengine, hot NEC(s)
  • Contactwithhotengine
  • Contactwithhotmachinery
  • Contactwithhottool
  • Contactwithmachine, machineryhot
  • Contactwithtoolhot

Code to one of these instead X17

3 child codes. Green means billable.

Questions about X17

Is X17 a billable ICD-10-CM code?
No. X17 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does X17 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 X17?
X17 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.