CPT® Code 78701

The procedure represented by CPT® Code 78701 involves the imaging of the kidneys to assess their morphology, which includes evaluating their size, shape, and structural integrity, as well as their vascular flow. This assessment is conducted using scintigraphy, a diagnostic imaging technique that employs a radiolabeled isotope tracer. The kidneys play a crucial role in filtering waste from the bloodstream, maintaining chemical balance, and producing essential hormones such as erythropoietin, which is vital for red blood cell production; renin, which helps regulate blood pressure; and calcitriol, which is important for calcium absorption in the bones. The imaging procedure is particularly useful for evaluating various renal conditions, including renal blood flow issues, renovascular hypertension, the presence of renal cysts, tumors, abscesses, and other kidney diseases. Additionally, it is employed in monitoring kidney transplants to ensure proper function. During the procedure, an intravenous line is established to facilitate the injection of the radiolabeled isotope tracer directly into the patient's circulatory system. The patient is then positioned on an imaging table, and a gamma camera is focused on the kidneys to capture images. Scanning occurs at predetermined intervals, during which the radioactive energy emitted from the kidneys is converted into detailed images for analysis. It is important to note that CPT® Code 78700 is designated for studies focusing solely on kidney morphology, while CPT® Code 78701 is specifically used when both morphology and vascular flow are evaluated. Following the imaging, the physician interprets the results and generates a comprehensive written report detailing the findings.