Z20.2 — Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission

Z20.2

ICD-10 Chapter 21: Factors Influencing Health Status — illustrative image — Chapter 21: Factors influencing health status and contact with health services (Z00–Z99) — illustrative image

What this code means

Contact with, or suspected exposure to, an infection mainly transmitted sexually, in a person being assessed or tested.

Also called: exposure to sexually transmitted infection.

When this code is used

Used for contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission.

Where it sits in ICD-10-CM

Code Z20.2 belongs to Chapter 21: Factors influencing health status and contact with health services, which covers codes Z00–Z99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Frequently asked questions

What is ICD-10-CM code Z20.2?

Z20.2 is the ICD-10-CM diagnosis code for “Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission”. Contact with, or suspected exposure to, an infection mainly transmitted sexually, in a person being assessed or tested.

When is code Z20.2 used?

Used for contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission. It belongs to Chapter 21 of ICD-10-CM (Factors influencing health status and contact with health services).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.