CPT® Code 86790

The CPT® Code 86790 refers to a laboratory test specifically designed to identify and measure antibodies against viruses that are not categorized elsewhere in the coding system. This test is crucial for diagnosing infections caused by various viruses, as it helps in determining the immune response of an individual to these pathogens. The procedure involves obtaining a blood sample, typically through a process known as venipuncture, which is a standard method for collecting blood for laboratory analysis. Once the blood sample is collected, the serum or plasma is subjected to testing methodologies such as enzyme-linked immunosorbent assay (ELISA), immunoassay (IA), or complement fixation. These techniques are employed to detect the presence of antibodies that indicate exposure to specific viruses. The code 86790 encompasses testing for a range of viruses, including but not limited to human T-lymphotropic virus (HTLV), dengue fever virus, rabies, hantavirus, Japanese encephalitis, hepatitis E virus (HEV), herpesvirus 6, chikungunya virus, parainfluenza virus, and zika virus. This broad spectrum of testing underscores the importance of the code in the context of viral diagnostics, allowing healthcare providers to assess and manage viral infections effectively.