Z77 — Other contact with and (suspected) exposures hazardous to health
Part of Chapter 21: Factors influencing health status and contact with health services , block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) .
Official Notes
Includes
contact with and (suspected) exposures to potential hazards to health
Excludes2
contact with and (suspected) exposure to communicable diseases ( Z20 .-)
Excludes2
exposure to (parental) (environmental) tobacco smoke in the perinatal period ( P96.81 )
Excludes2
newborn affected by noxious substances transmitted via placenta or breast milk ( P04 .-)
Excludes2
occupational exposure to risk factors ( Z57 .-)
Excludes2
retained foreign body ( Z18 .-)
Excludes2
retained foreign body fully removed ( Z87.821 )
Excludes2
toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
Child Codes
- Z77.0 Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicals Has subcodes
- Z77.1 Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment Has subcodes
- Z77.2 Contact with and (suspected) exposure to other hazardous substances Has subcodes
- Z77.3 Contact with and (suspected) exposure to war theater Has subcodes
- Z77.4 Contact with and (suspected) exposure to blast overpressure Has subcodes
- Z77.9 Other contact with and (suspected) exposures hazardous to health Billable
Referenced By
Official notes on these codes cite Z77.
- P04 Newborn affected by noxious substances transmitted via placenta or breast milk
- Z03 Encounter for medical observation for suspected diseases and conditions ruled out
- Z13.88 Encounter for screening for disorder due to exposure to contaminants Billable
- Z91 Personal risk factors, not elsewhere classified
FY 2027 effective October 1, 2026 · CDC NCHS and CMS