CPT® Code 93574

Add-On Code

Injection procedure during cardiac catheterization including imaging supervision, interpretation, and report; for selective pulmonary venous angiography of each distinct pulmonary vein during cardiac catheterization (List separately in addition to code for primary procedure)

The CPT® Code 93574 refers to an injection procedure performed during cardiac catheterization, specifically for selective pulmonary venous angiography of each distinct pulmonary vein. This procedure is typically conducted in conjunction with a primary left heart catheterization, which is a separate reportable procedure. The primary aim of this angiography is to visualize the pulmonary veins, which are the blood vessels that carry oxygenated blood from the lungs to the heart. In a standard case, there are four pulmonary veins; however, anatomical variations may result in patients having one additional vein or one less. The procedure is particularly relevant for pediatric patients, such as infants and children, who may present with congenital cardiac anomalies and pulmonary hypertension, especially following surgical interventions. During the procedure, a catheter is strategically positioned in the pulmonary venous atrium, allowing for targeted imaging of the pulmonary veins. The process involves selectively accessing each vein suspected of having abnormalities or stenosis, which is a narrowing of the blood vessel. The injection of contrast material into the veins enables the physician to assess for any irregularities. The procedure is meticulously monitored, with the patient's vital signs, including arterial pressure, heart rhythm, and oxygen saturation, being continuously observed to ensure safety and to identify any potential complications, such as allergic reactions or arrhythmias. The physician also provides a comprehensive report detailing the findings from the angiography, which is crucial for further clinical decision-making.