Z77.1Header code — not billable

Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment

Short description: Contact w and exposure pollutn & hazrd in phys envr

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 Z77.1?

Z77.1 is an ICD-10-CM diagnosis code for Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment.

Is Z77.1 a billable code?

No. Z77.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is Z77.1 in?

Z77.1 falls under Chapter 21: Factors influencing health status and contact with health services.

When did Z77.1 become effective?

Z77.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Z77.1?

Z77.1 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.