X39.01XS
✓ Billable
Exposure to radon, sequela
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
X39.01XS
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code X39.01XS?
ICD-10-CM code X39.01XS represents Exposure to radon, sequela. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is X39.01XS billable?
Yes. X39.01XS is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is X39.01XS in?
X39.01XS belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the X39 category
X39
Exposure to other forces of nature
Non-billable
X39.0
Exposure to natural radiation
Non-billable
X39.8
Other exposure to forces of nature
Non-billable
X39.01
Exposure to radon
Non-billable
X39.08
Exposure to other natural radiation
Non-billable
X39.01XA
Exposure to radon, initial encounter
Billable
X39.01XD
Exposure to radon, subsequent encounter
Billable
X39.08XA
Exposure to other natural radiation, initial encounter
Billable
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