CPT® Code 78708

Kidney imaging morphology; with vascular flow and function, single study, with pharmacological intervention (eg, angiotensin converting enzyme inhibitor and/or diuretic)

The procedure described by CPT® Code 78708 involves kidney imaging that assesses the morphology, vascular flow, and function of the kidneys through a single study. This imaging is performed using scintigraphy, which utilizes a radiolabeled isotope tracer to visualize the kidneys. The kidneys play a crucial role in filtering waste from the bloodstream, maintaining chemical balance, and producing essential hormones such as erythropoietin, renin, and calcitriol. Erythropoietin is vital for red blood cell production, renin is involved in blood pressure regulation, and calcitriol aids in calcium absorption in the bones. The imaging procedure is particularly useful for evaluating various renal conditions, including renal blood flow issues, renovascular hypertension, renal cysts, tumors, abscesses, and kidney diseases. It is also employed to monitor kidney transplant function. During the procedure, an intravenous line is established to inject 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 specific intervals, and the emitted radioactive energy is converted into detailed images of the kidneys. Additionally, pharmacological interventions such as diuretics may be administered to enhance image clarity, particularly in cases of kidney obstruction. An angiotensin converting enzyme (ACE-inhibitor) may also be given to assess the relationship between hypertension and renal vascular flow. This code is specifically designated for studies that include these pharmacological interventions, distinguishing it from other related codes that may not involve such medications.