| Code | Title | 
					
				| – | Top Categories | 
		
					
				| 0 | Medical and Surgical | 
					
				| 02 | Heart and Great Vessels | 
					
				| 02Q | Repair
					Heart and Great Vessels, Repair | 
					
				| 02Q0 | Coronary Artery, One Artery | 
					
				| 02Q1 | Coronary Artery, Two Arteries | 
					
				| 02Q2 | Coronary Artery, Three Arteries | 
					
				| 02Q3 | Coronary Artery, Four or More Arteries | 
					
				| 02Q4 | Coronary Vein | 
					
				| 02Q5 | Atrial Septum | 
					
				| 02Q6 | Atrium, Right | 
					
				| 02Q7 | Atrium, Left | 
					
				| 02Q8 | Conduction Mechanism | 
					
				| 02Q9 | Chordae Tendineae | 
					
				| 02QA | Heart | 
					
				| 02QB | Heart, Right | 
					
				| 02QC | Heart, Left | 
					
				| 02QD | Papillary Muscle | 
					
				| 02QF | Aortic Valve | 
					
				| 02QG | Mitral Valve | 
					
				| 02QH | Pulmonary Valve | 
					
				| 02QJ | Tricuspid Valve | 
					
				| 02QK | Ventricle, Right | 
					
				| 02QL | Ventricle, Left | 
					
				| 02QM | Ventricular Septum | 
					
				| 02QN | Pericardium | 
					
				| 02QP | Pulmonary Trunk | 
					
				| 02QQ | Pulmonary Artery, Right | 
					
				| 02QR | Pulmonary Artery, Left | 
					
				| 02QS | Pulmonary Vein, Right | 
					
				| 02QT | Pulmonary Vein, Left | 
					
				| 02QV | Superior Vena Cava | 
					
				| 02QW | Thoracic Aorta, Descending | 
					
				| 02QX | Thoracic Aorta, Ascending/Arch |