Exposure to varicella
Exposure to varicella chicken pox)
Z20.820 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM Z20.820 became effective on October 1, 2022.
This is the American ICD-10-CM version of Z20.820 – other international versions of ICD-10 Z20.820 may differ.