Z77.123Billable
Contact with and (suspected) exposure to radon and other naturally occurring radiation
Short description: Cntct w & expsr to radon and other naturally occur radiation
- Chapter
- 21. Factors influencing health status and contact with health services
- Category
- Z77
- Effective date
- October 1, 2026
Related codes in category Z77
Z77Oth contact w and (suspected) exposures hazardous to healthZ77.0Contact w and exposure to hazard, chiefly nonmed, chemicalsZ77.01Contact with and (suspected) exposure to hazardous metalsZ77.010Contact with and (suspected) exposure to arsenicYesZ77.011Contact with and (suspected) exposure to leadYesZ77.012Contact with and (suspected) exposure to uraniumYesZ77.013Contact with and (suspected) exposure to gadoliniumYesZ77.018Contact w and (suspected) exposure to oth hazardous metalsYesZ77.02Contact w and exposure to hazardous aromatic compoundsZ77.020Contact with and (suspected) exposure to aromatic aminesYesZ77.021Contact with and (suspected) exposure to benzeneYesZ77.028Contact w and exposure to oth hazardous aromatic compoundsYes
Frequently asked questions
What is ICD-10 code Z77.123?
Z77.123 is an ICD-10-CM diagnosis code for Contact with and (suspected) exposure to radon and other naturally occurring radiation.
Is Z77.123 a billable code?
Yes. Z77.123 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Z77.123 in?
Z77.123 falls under Chapter 21: Factors influencing health status and contact with health services.
When did Z77.123 become effective?
Z77.123 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Z77.123?
Z77.123 belongs to category Z77, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.