Ask Dr. Z

"Patient brought to the cath lab, placement of a right pulmonary artery cath and a left radial artery cath, due to borderline biventricular pressures, cath left in place, patient transported to the exercise lab for cardiopulmonary exercise testing via bicycle ergometry with right heart cath and radial cath in place to evaluate hemodynamic response. Continuous oxygen saturation, ECG, expired gas, arterial pressure, right atrial pressure, and pulmonary arterial pressure monitoring were performed continuously throughout the test. Arterial and mixed venous blood gasses were collected every minute. Pulmonary capillary wedge pressure was measured every minute, etc… After the procedure was completed the catheters and sheaths were removed."  In addition to 94621 (CPET), would the correct additional codes to report be 93451, 93464, 36620?