CPT® Code 86644

The CPT® Code 86644 refers to the laboratory test for antibodies to cytomegalovirus (CMV), which is a member of the herpes virus family. This test is performed on a blood sample to detect the presence of antibodies, specifically total antibodies (IgG and IgM) or IgG antibodies alone. CMV is primarily transmitted through direct contact with infected body fluids, such as saliva, urine, breast milk, and through sexual contact. In healthy adults, CMV infection may present with symptoms similar to those of mononucleosis, including fatigue, fever, and sore throat. However, the implications of CMV infection can be more severe for certain populations. For instance, if a mother contracts CMV during pregnancy, there is a risk of birth defects in the newborn, which can lead to long-term health issues. Additionally, individuals with weakened immune systems, such as those living with acquired immune deficiency syndrome (AIDS) or patients undergoing treatment for malignancies, are at a heightened risk for serious complications associated with CMV. These complications can include chorioretinitis, gastrointestinal disorders, pneumonitis, and central nervous system diseases. The testing method for CPT® Code 86644 involves solid phase agglutination or chemiluminescent immunoassay techniques to identify the total CMV antibodies, which are crucial for determining whether an individual has had a past or current infection. The presence of IgG antibodies typically indicates a past infection, although they may also be present during an active infection.