CPT® Code 86382

The CPT® Code 86382 refers to a laboratory procedure known as a neutralization test for viruses. This test is specifically designed to measure the presence of neutralizing antibodies in a patient's blood, which are critical for determining immunity against certain viral infections, such as polio or rabies. Neutralizing antibodies are proteins produced by the immune system that can bind to viruses, preventing them from infecting cells and thereby neutralizing their harmful effects. The presence of these antibodies indicates that the individual may have developed immunity to the virus in question. One common application of this test is the rapid fluorescent focus inhibition test (RFFIT), which is particularly utilized for rabies testing. The RFFIT is typically conducted 14 to 21 days after a patient has completed an initial series of rabies vaccinations or after they have received a booster dose. For individuals who are at continuous risk of rabies exposure, such as those working with animals or in certain healthcare settings, this test may be performed every six months. Conversely, individuals with less frequent exposure may undergo testing every two years. The procedure involves obtaining a blood sample through venipuncture, which is a separately reportable procedure, and then analyzing the sample using culture and neutralization techniques to assess the presence and functionality of the antibodies against the live virus.