X39.01

Billable

Exposure to radon

X39.01 is the ICD-10-CM code for Exposure to radon. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
V00-Y99
Parent
X39.0
Edition
FY2026

V00-Y99 External causes of morbidity

What this means — in plain language

MedlinePlus · NIH

What is radon? Radon is a naturally occurring radioactive gas. It is invisible and has no odor or taste. It comes from the normal decay of uranium and thorium. These are two chemical elements that can be found in soil, rock, and groundwater. Radon breaks down quickly, giving off radioactive particles. Over time, breathing in high levels of these particles can cause lung cancer . How would I be exposed to radon?…

Read more about Radon at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code X39.01?
X39.01 is the ICD-10-CM code for "Exposure to radon". It falls under V00-Y99 External causes of morbidity.
Is X39.01 a billable code?
Yes — X39.01 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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