Exposure to radon, subsequent encounter

This code signifies a documented exposure to radon, a naturally occurring radioactive gas, identified during a subsequent encounter. It indicates that the patient has previously been evaluated for or had an initial encounter related to radon exposure, and this visit addresses ongoing management, monitoring, or follow-up.

Utilize this code when a patient presents for follow-up care after an initial diagnosis or evaluation of radon exposure. This includes monitoring for related health effects, discussing mitigation strategies, or managing anxiety related to the exposure. It is appropriate for any encounter beyond the initial assessment of the exposure itself.

• Ensure documentation clearly indicates this is a follow-up or subsequent encounter for radon exposure, not the initial identification.
• Pair this code with any relevant codes for conditions or symptoms resulting from the radon exposure (e.g., lung cancer, respiratory symptoms).
• Verify the encounter's purpose aligns with ongoing management rather than a new, unrelated exposure event.