CPT® Code 84156

The CPT® Code 84156 refers to a laboratory test that measures the total protein levels in urine, specifically excluding methods that utilize refractometry. This test is significant because the presence of protein in urine, known as proteinuria, is not typical and can be indicative of underlying kidney damage or disease. The kidneys usually filter out proteins, allowing only minimal amounts to pass into the urine. Therefore, elevated protein levels can signal various health issues, including chronic conditions such as diabetes and hypertension, as well as specific diseases like multiple myeloma. To conduct this test, a urine sample is collected, which can either be a 24-hour collection or a random sample. The analysis is performed using quantitative spectrophotometry, a method that quantifies the concentration of proteins in the urine, providing essential information for diagnosing and monitoring kidney health and related conditions.