MCMCB Pro
X02

X02Exposure to controlled fire in building or structure

Non-billable headerICD-10-CM

X02 is a non-billable header ICD-10-CM code for exposure to controlled fire in building or structure. 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 X02

A
initial encounter
D
subsequent encounter
S
sequela

Includes

Conditions this code covers.

  • exposure to fire in fireplace
  • exposure to fire in stove

Other codes that can never be billed with X02

These codes carry an Excludes1 note pointing at X02. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading X02 alone.

  • W20.1Struck by object due to collapse of building
  • W20.1XXAStruck by object due to collapse of building, initial encounter
  • W20.1XXDStruck by object due to collapse of building, subsequent encounter
  • W20.1XXSStruck by object due to collapse of building, sequela
  • X15Contact with hot household appliances
  • X16Contact with hot heating appliances, radiators and pipes
  • X16.XXXAContact with hot heating appliances, radiators and pipes, initial encounter
  • X16.XXXDContact with hot heating appliances, radiators and pipes, subsequent encounter

Risk adjustment

X02 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.

Code to one of these instead X02

7 child codes. Green means billable.

Questions about X02

Is X02 a billable ICD-10-CM code?
No. X02 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does X02 sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Exposure to smoke, fire and flames (X00-X08).
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.