Z77.22

Billable
ChapterZ00–Z99
Ranksubcategory
Official Description

Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).

Instructional Notes

Includes
  • Exposure to second hand tobacco smoke (acute) (chronic)
  • Passive smoking (acute) (chronic)
Excludes1(Not coded here)
  • nicotine dependence (F17.-)
  • tobacco use (Z72.0)
Excludes2(Not included here)
  • occupational exposure to environmental tobacco smoke (Z57.31)
General instructions are available for the parent sections:
View Z77-Z99 NotesView Z77 Notes

Clinical Hierarchy

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 health
Z77.2Contact with and (suspected) exposure to other hazardous substances
Z77.22Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Z77.22:

categoryZ77
Other contact with and (suspected) exposures hazardous to health
View context instructions
blockZ77-Z99
Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to Z77.22. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

5 raw paths
Exposure (to)2 unique routes
environmental tobacco smoke (acute) (chronic)→Z77.22
second hand tobacco smoke (acute) (chronic)→Z77.22
Passive1 unique routes
smoking→Z77.22
Second hand tobacco smoke exposure (acute) (chronic)1 unique routes
Direct index entry→Z77.22
Smoking1 unique routes
passive→Z77.22

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 951
Other Factors Influencing Health Status

Cross Reference

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