CPT® Code 80202

The CPT® Code 80202 refers to the laboratory test for measuring vancomycin levels in the blood. Vancomycin, also known by its brand name Vancocin, is a glycopeptide antibiotic that is primarily used to treat severe or serious bacterial infections. This medication is particularly important in the management of systemic infections, where it is typically administered via intravenous infusion. In cases of intestinal infections, such as colitis or those caused by Clostridium difficile, vancomycin can be taken orally. Monitoring the blood levels of vancomycin is crucial due to the drug's potential to cause auditory toxicity, which can lead to hearing loss if levels are not properly managed. The testing involves obtaining blood samples at various times: random samples can be drawn at any time, while peak and trough levels are specifically time-dependent. A trough level is collected 10 minutes before the intravenous infusion begins, and a peak level is drawn 1 to 2 hours after the infusion has been completed. The blood samples are obtained through a venipuncture, which is a separate reportable procedure. The serum from the blood is then analyzed using a fluorescence polarization immunoassay, a method that allows for accurate measurement of the drug levels in the bloodstream.