CPT® Code 36011

A selective catheter placement procedure within the venous system involves the precise insertion of a catheter into a specific vein that serves as a first-order branch. This type of procedure is commonly performed to access major veins such as the renal vein or jugular vein. The process begins with the identification of an appropriate access point, typically through veins like the brachial or cephalic veins. A small incision is made at the chosen puncture site, allowing for the insertion of an introducer sheath into the vein. Following this, a guidewire is carefully advanced through the access vein, navigating towards the superior vena cava. Once the guidewire is in place, a catheter is threaded over it and directed into a first-order venous branch, which is defined as any vein that drains directly into the vena cava. This may include the jugular vein or, alternatively, the catheter may be advanced through the right atrium into the inferior vena cava, reaching branches such as the hepatic or renal vein. The catheter can remain in the first-order branch or be further advanced into more selective branches, such as the petrosal sinus or left adrenal vein, depending on the clinical requirements. During this procedure, the injection of medication or radiopaque contrast may be performed as necessary to facilitate imaging or treatment. The CPT® Code 36011 is specifically designated for this selective catheter placement in a first-order vein branch, while CPT® Code 36012 is used for catheter placements in second-order or more selective vein branches.