Z77.22 ICD-10-CM Code: Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)

Z77.22 is the ICD-10-CM diagnosis code for contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic). 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. Z77.22 sits in the ICD-10-CM chapter for factors influencing health status and contact with health services (z00-z99), within the section covering persons with potential health hazards related to family and personal history and certain conditions influencing health status (z77-z99).

Z77.22 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Use this code when documenting environmental tobacco smoke exposure history; it does not require the patient to have symptoms.