By David Zielske, MD, CPC-H, CIRCC, CCC, CCS, RCC From a coder’s perspective, the heart is made up of chambers, valves, and coronary and pulmonary arteries and veins. Let’s focus on outpatient hospital and physician CPT® coding for diagnostic and interventional coronary arterial procedures. Branch Out Coronary Artery Coding Know-how Anatomically there are two coronary ...