Z77
⚠ Non-billable
Other contact with and (suspected) exposures hazardous to health
ICD-10-CM · FY2026 · Factors Influencing Health Status
Code
Z77
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Factors Influencing Health Status
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 Z77?
ICD-10-CM code Z77 represents Other contact with and (suspected) exposures hazardous to health. It is a non-billable header code requiring a more specific subcategory in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.
Is Z77 billable?
No. Z77 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is Z77 in?
Z77 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.
Related codes in the Z77 category
Z77.0
Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicals
Non-billable
Z77.1
Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment
Non-billable
Z77.2
Contact with and (suspected) exposure to other hazardous substances
Non-billable
Z77.3
Contact with and (suspected) exposure to war theater
Non-billable
Z77.9
Other contact with and (suspected) exposures hazardous to health
Billable
Z77.01
Contact with and (suspected) exposure to hazardous metals
Non-billable
Z77.02
Contact with and (suspected) exposure to hazardous aromatic compounds
Non-billable
Z77.09
Contact with and (suspected) exposure to other hazardous, chiefly nonmedicinal, chemicals
Non-billable
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