Z11.3 — Encounter for screening for infections with a predominantly sexual mode of transmission

Z11.3

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

An encounter for screening (testing) for infections mainly transmitted sexually, in a person without symptoms of them.

Also called: std screening, screening for sexually transmitted infections.

When this code is used

Used for encounter for screening for infections with a predominantly sexual mode of transmission.

Where it sits in ICD-10-CM

Code Z11.3 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 Z11.3?

Z11.3 is the ICD-10-CM diagnosis code for “Encounter for screening for infections with a predominantly sexual mode of transmission”. An encounter for screening (testing) for infections mainly transmitted sexually, in a person without symptoms of them.

When is code Z11.3 used?

Used for encounter for screening for 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.