CPT® Code 87850

The CPT® Code 87850 refers to the detection of infectious agent antigens through an immunoassay method, specifically targeting Neisseria gonorrhoeae, the bacterium responsible for gonorrhea. Gonorrhea is a sexually transmitted infection (STI) that can be transmitted through direct contact during sexual activities, affecting various anatomical sites including the reproductive tract, mouth, throat, eyes, and anus. In women, Neisseria gonorrhoeae often remains asymptomatic, which can lead to severe complications such as pelvic inflammatory disease (PID) and infertility due to potential irreversible damage to the reproductive system. Conversely, men typically exhibit symptoms such as burning sensations during urination, itching, and discharge from the urethra; however, they are less likely to experience long-term reproductive issues from the infection. The testing process involves collecting a specimen using a swab from the cervix, male urethra, mouth, throat, or eye, or alternatively, a urine sample may be utilized. The test itself is a rapid, qualitative sandwich immunoassay that identifies the presence of gonorrhea antigens in the specimen. During the procedure, the specimen is mixed with a reagent that extracts the gonorrhea antigen, followed by the application of monoclonal and polyclonal antibodies that specifically bind to Neisseria gonorrhoeae. A positive result is indicated by a color change in the test strip, line, or dot, alongside a control strip, line, or dot, confirming the presence of the antigen.