Z20.820
BillableContact with and (suspected) exposure to varicella
Z20.820 is the ICD-10-CM code for Contact with and (suspected) exposure to varicella. It is a billable, specific code valid for reimbursement.
Z00-Z99 Factors influencing health status and contact with health services
What this means — in plain language
MedlinePlus · NIHChickenpox is an infection caused by the varicella-zoster virus. Most cases are in children under age 15, but older children and adults can get it. It spreads very easily from one person to another. The classic symptom of chickenpox is an uncomfortable, itchy rash. The rash turns into fluid-filled blisters and eventually into scabs. It usually shows up on the face, chest, and back and then spreads to the rest of the…
Read more about Chickenpox at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
- What is ICD-10 code Z20.820?
- Z20.820 is the ICD-10-CM code for "Contact with and (suspected) exposure to varicella". It falls under Z00-Z99 Factors influencing health status and contact with health services.
- Is Z20.820 a billable code?
- Yes — Z20.820 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition