Z77

Non-billable

Other contact with and (suspected) exposures hazardous to health

Z77 is the ICD-10-CM code for Other contact with and (suspected) exposures hazardous to health. It is a non-billable category code — use a more specific child code such as Z77.0 for billing.

Status
Header (non-billable)
Chapter
Z00-Z99
Subcodes
5
Edition
FY2026

Z00-Z99 Factors influencing health status and contact with health services

Includes

  • contact with and (suspected) exposures to potential hazards to health

Excludes2 — not included here

  • contact with and (suspected) exposure to communicable diseases (Z20.-)
  • exposure to (parental) (environmental) tobacco smoke in the perinatal period (P96.81)
  • newborn affected by noxious substances transmitted via placenta or breast milk (P04.-)
  • occupational exposure to risk factors (Z57.-)
  • retained foreign body (Z18.-)
  • retained foreign body fully removed (Z87.821)
  • toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Frequently asked questions

What is ICD-10 code Z77?
Z77 is the ICD-10-CM code for "Other contact with and (suspected) exposures hazardous to health". It falls under Z00-Z99 Factors influencing health status and contact with health services.
Is Z77 a billable code?
No — Z77 is a non-billable header code. Use a more specific child code (such as Z77.0) for billing.
What are the subcodes of Z77?
Z77 has 5 more specific child codes, including Z77.0, Z77.1, Z77.2.

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

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