Contact w and exposure to infect w a sexl mode of transmiss

This code indicates that an individual has had contact with, or is suspected of having been exposed to, a sexually transmitted infection (STI). This applies when the patient has been near someone diagnosed with an STI or has engaged in activities that put them at risk, but they are not yet confirmed to have the infection themselves. It signifies a potential exposure requiring further evaluation or prophylactic measures.

Use this code when a patient presents for evaluation following unprotected sexual contact with an individual known to have an STI, or when a patient reports high-risk sexual behavior that warrants screening for STIs. It is appropriate for situations where the patient is asymptomatic but has a documented exposure, or when the diagnosis of an STI is suspected but not yet confirmed by laboratory testing.

• Always sequence this code as a secondary diagnosis when a definitive STI diagnosis is made during the same encounter.
• Do not use this code if the patient is already confirmed to have an STI; instead, code the specific STI.
• Consider adding a Z11.- code for screening for specific STIs if applicable, especially when the patient is asymptomatic.