CPT® Code 87332

Infectious agent antigen detection by immunoassay technique, (eg, enzyme immunoassay [EIA], enzyme-linked immunosorbent assay [ELISA], fluorescence immunoassay [FIA], immunochemiluminometric assay [IMCA]) qualitative or semiquantitative; cytomegalovirus

The CPT® Code 87332 refers to a laboratory test designed to detect the presence of cytomegalovirus (CMV) antigen using various immunoassay techniques. These techniques include enzyme immunoassay (EIA), enzyme-linked immunosorbent assay (ELISA), fluorescence immunoassay (FIA), and immunochemiluminometric assay (IMCA). Cytomegalovirus is a member of the herpes virus family and is capable of infecting a wide range of individuals; however, it poses significant risks to newborns and individuals with compromised immune systems. The detection of CMV is particularly critical in newborns, as they can acquire the virus during delivery, leading to congenital infections. Symptoms in infected infants may manifest as low birth weight, jaundice, splotchy skin, hepatosplenomegaly, seizures, microcephaly, developmental delays, hearing loss, or visual impairment. In healthy adults, CMV infection may present symptoms similar to mononucleosis, including fatigue, fever, and muscle aches. Conversely, in immunocompromised patients, the virus can lead to severe complications such as pneumonia, hepatitis, encephalitis, seizures, fever, gastrointestinal ulcers, visual impairment, and even coma. The laboratory test involves obtaining a sample, typically blood or amniotic fluid, which is then processed to identify the CMV antigen. The immunoassay techniques employed are sensitive and capable of detecting minute quantities of the antigen through specific binding interactions, resulting in measurable color changes or fluorescence that indicate the presence of the virus.