X39.01
X39.01: Exposure to radon
Non-billable headerICD-10-CM
X39.01 is a non-billable header ICD-10-CM code for exposure to radon. 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 X39
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1 inherited from the categories above X39.01
A category’s note binds every code beneath it.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Forces of nature›radon
- Forces of nature›radiation›radon
- Radiation›natural NEC›radon
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead X39.01
3 child codes. Green means billable.