Z77.22
Billable codeContact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
The ICD-10 code for contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic) is Z77.22.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
- occupational exposure to environmental tobacco smoke (Z57.31)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Exposure to second hand tobacco smoke (acute) (chronic)
- Passive smoking (acute) (chronic)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z77.21Contact with and (suspected) exposure to potentially hazardous body fluids
- Z77.29Contact with and (suspected) exposure to other hazardous substances
- Z77.22Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- V1589Approximate match
Associated MS-DRGs
Z77.22 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.