CPT® Code 83150

The CPT® Code 83150 refers to the measurement of homovanillic acid (HVA) levels in urine. HVA is a significant metabolite of catecholamines, which are hormones produced by the adrenal glands in response to stress. This test is particularly important as elevated levels of HVA can indicate various medical conditions, including neuroblastoma, a type of cancer that commonly affects children, and malignant pheochromocytoma, a tumor of the adrenal gland that can lead to excessive production of catecholamines. Additionally, HVA levels may be influenced by several other factors such as hypertension, anxiety, and intense physical activity, as well as the use of certain prescription and over-the-counter medications. It is noteworthy that smoking can lead to markedly decreased levels of HVA in the urine. For the test, a random voided urine sample or a 24-hour urine specimen is collected, and the analysis is performed using quantitative high-performance liquid chromatography, a precise method that allows for accurate measurement of HVA concentrations in the urine.