CPT® Code 36012

A selective catheter placement procedure within the venous system involves the precise insertion of a catheter into a specific vein to facilitate further diagnostic or therapeutic interventions. This procedure is typically performed through common access points such as the brachial or cephalic veins. Initially, a small incision is made at the chosen puncture site, allowing for the placement of an introducer sheath into the vein. Following this, a guidewire is carefully advanced through the access vein and into the superior vena cava, which is a large vein that carries blood from the upper body to the heart. The catheter is then navigated into a venous branch that extends from the superior vena cava, such as the jugular vein, or it may be directed through the right atrium into the inferior vena cava, subsequently reaching branches like the hepatic or renal vein. The procedure can involve positioning the catheter in a first-order branch, which refers to veins that drain directly into the vena cava, or advancing it into a second-order or more selective branch. Examples of these more selective branches include the left adrenal vein or the petrosal sinus. During the procedure, the injection of medication or radiopaque contrast material may be performed as necessary to enhance imaging or facilitate treatment. It is important to note that CPT® Code 36012 is specifically designated for selective catheter placement in a second-order or more selective vein branch, while CPT® Code 36011 is used for first-order vein branches.