CPT® Code 75774

Add-On Code

Angiography, selective, each additional vessel studied after basic examination, radiological supervision and interpretation (List separately in addition to code for primary procedure)

Selective angiography is a diagnostic imaging procedure that employs a radiopaque contrast medium and fluoroscopy to visualize blood vessels located distal to the aorta. This technique is essential for assessing vascular conditions and identifying potential pathologies. The procedure begins with the insertion of a large bore needle into a blood vessel, typically in the groin area. A guidewire is then introduced through the needle, allowing for the advancement of a catheter over the guidewire into the abdominal aorta, guided by X-ray imaging. Once the catheter is positioned near the area of interest, radiopaque contrast material is injected to perform the basic examination of the vessels. In cases where the initial imaging does not provide adequate visualization due to factors such as occlusive disease, anatomical variations, or other complications, additional selective catheterization and angiography may be required. This involves advancing the catheter beyond the initial examination site and injecting contrast material to visualize additional vessels. The CPT® Code 75774 specifically reports the radiological supervision and interpretation of each additional vessel studied following the basic angiography procedure, ensuring that the findings are documented in a written report. It is important to note that this code is used in conjunction with the code for the primary angiography procedure, reflecting the comprehensive nature of the evaluation performed.