STD Screening ICD-10 Codes
ICD-10 (International Classification of Diseases, 10th revision) codes are the standardized codes healthcare providers use to document diagnoses and bill insurance. If you're a provider, biller, or just trying to understand a line item on a bill, here's a quick reference for the codes most commonly associated with STD screening.
Common screening and diagnosis codes
Z11.3 is the general code for an encounter for screening for infections with a predominantly sexual mode of transmission — this is the code most often used for a routine STD screening visit itself, separate from any specific diagnosis. Beyond that general screening code, specific infections have their own diagnosis codes once identified: chlamydia falls under the A56 range, gonorrhea under A54, syphilis under A50–A53 depending on the stage, HIV is coded as B20, genital herpes falls under A60, and HPV-related diagnoses generally fall under A63 or B97.7 depending on what's being documented.
Why this matters outside of billing offices
If you've seen one of these codes on an insurance statement or medical record and weren't sure what it meant, this is generally administrative information rather than a diagnosis in itself — Z11.3 in particular just means a screening was performed, not that anything was found. If you have questions about a specific code on your own record, your provider's billing office is better positioned to clarify the exact context than a general reference like this one.
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