CPT® Code 87496

The CPT® Code 87496 refers to a laboratory test designed for the detection of the infectious agent known as cytomegalovirus (CMV) through the analysis of nucleic acids, specifically DNA or RNA. Cytomegalovirus is a member of the herpesvirus family and is commonly transmitted from person to person via infected bodily fluids, which include blood, saliva, urine, semen, and breast milk. While CMV infection is prevalent in the general population, it typically manifests as a disease resembling mononucleosis primarily in individuals with compromised immune systems. In neonates, congenital or perinatal CMV infection can lead to severe health issues if symptomatic at birth, or may result in long-term complications such as hearing loss or vision impairment as the child grows. Furthermore, pregnant women who contract CMV have the potential to transmit the virus to their fetus, which can have serious implications for the infant's health. The test utilizes an amplified probe technique to enhance the sensitivity of the assay, allowing for the exponential multiplication of the target nucleic acid sequence associated with CMV. This method significantly improves the likelihood of detecting the virus in a sample, as it can identify even minute quantities of the viral genetic material. The amplification process is commonly achieved through techniques such as polymerase chain reaction (PCR) or reverse transcriptase polymerase chain reaction (RT-PCR), which replicate the target sequences into millions of copies. Following amplification, labeled DNA probes are employed to specifically identify the replicated sequences, facilitating accurate detection of CMV in clinical specimens.