| Section | 0 | Medical and Surgical |
| Body System | 2 | Heart and Great Vessels |
| Operation | N | Release: Freeing a body part from an abnormal physical constraint by cutting or by the use of force |
| Body Part 4 Coronary Vein 5 Atrial Septum 6 Atrium, Right 7 Atrium, Left 8 Conduction Mechanism 9 Chordae Tendineae D Papillary Muscle F Aortic Valve G Mitral Valve H Pulmonary Valve J Tricuspid Valve K Ventricle, Right L Ventricle, Left M Ventricular Septum N Pericardium P Pulmonary Trunk Q Pulmonary Artery, Right R Pulmonary Artery, Left S Pulmonary Vein, Right T Pulmonary Vein, Left V Superior Vena Cava W Thoracic Aorta |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic |
Device Z No Device |
Qualifier Z No Qualifier |