All ICD10 Codes

Z77

Non-Billable
ChapterZ00–Z99
Rankcategory
Official Description

Other contact with and (suspected) exposures hazardous to health

Use a more specific code (1 billable, 4 non-billable)
Z77.0Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicalshas subcodesZ77.1Contact with and (suspected) exposure to environmental pollution and hazards in the physical environmenthas subcodesZ77.2Contact with and (suspected) exposure to other hazardous substanceshas subcodesZ77.3Contact with and (suspected) exposure to war theaterhas subcodesZ77.9Other contact with and (suspected) exposures hazardous to health
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).

Z77-Z99 Parent Instructions

Code Also
  • any follow-up examination (Z08-Z09)

Instructional Notes

Includes
  • contact with and (suspected) exposures to potential hazards to health
Excludes2(Not included here. Code separately if applicable.)
  • 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)

Clinical Hierarchy

BillableHas subcodes
CH21Factors influencing health status and contact with health services (Z00-Z99)
Z77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Z77Other contact with and (suspected) exposures hazardous to healthNot billable
Z77.0Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicalsSubcodes
Z77.1Contact with and (suspected) exposure to environmental pollution and hazards in the physical environmentSubcodes
Z77.2Contact with and (suspected) exposure to other hazardous substancesSubcodes
Z77.3Contact with and (suspected) exposure to war theaterSubcodes
Z77.9Other contact with and (suspected) exposures hazardous to healthBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Z77:

blockZ77-Z99
Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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