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Z77.22

Billable

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

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A person has been exposed to secondhand tobacco smoke, either recently or over a long period of time. This code documents the exposure regardless of whether symptoms have developed.

Coding Tips

  • Use this code when documenting environmental tobacco smoke exposure history; it does not require the patient to have symptoms
  • Specify whether the exposure is acute or chronic in the documentation to support accurate code selection

Excludes 1 — Do NOT code together

  • nicotine dependence (F17.-)
  • tobacco use (Z72.0)

Excludes 2 — Not included here, may code separately

  • occupational exposure to environmental tobacco smoke (Z57.31)

Code Hierarchy

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