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CPT® 33737, Under Shunting Procedures on the Heart and Pericardium

The Current Procedural Terminology (CPT®) code 33737 as maintained by American Medical Association, is a medical procedural code under the range - Shunting Procedures on the Heart and Pericardium.

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Summary

In this procedure, the provider removes the atrial septum or he intentionally creates an opening in the atrial septum, a wall of tissue separating the right and left atrium of the heart. This is an open heart surgery, meaning that he places the patient on cardiopulmonary bypass to perform this service. He also performs inflow occlusion, meaning that he covers the vena cavae and the azygous vein with tourniquets to temporarily interrupt the venous blood returning to the heart and provide a brief period of complete circulatory arrest.

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