| Code | Title | 
					
				| – | Top Categories | 
		
					
				| 0 | Medical and Surgical | 
					
				| 02 | Heart and Great Vessels | 
					
				| 025 | Destruction
					Heart and Great Vessels, Destruction | 
					
				| 0254 | Coronary Vein | 
					
				| 0255 | Atrial Septum | 
					
				| 0256 | Atrium, Right | 
					
				| 0257 | Atrium, Left | 
					
				| 0258 | Conduction Mechanism | 
					
				| 0259 | Chordae Tendineae | 
					
				| 025D | Papillary Muscle | 
					
				| 025F | Aortic Valve | 
					
				| 025G | Mitral Valve | 
					
				| 025H | Pulmonary Valve | 
					
				| 025J | Tricuspid Valve | 
					
				| 025K | Ventricle, Right | 
					
				| 025L | Ventricle, Left | 
					
				| 025M | Ventricular Septum | 
					
				| 025N | Pericardium | 
					
				| 025P | Pulmonary Trunk | 
					
				| 025Q | Pulmonary Artery, Right | 
					
				| 025R | Pulmonary Artery, Left | 
					
				| 025S | Pulmonary Vein, Right | 
					
				| 025T | Pulmonary Vein, Left | 
					
				| 025V | Superior Vena Cava | 
					
				| 025W | Thoracic Aorta, Descending | 
					
				| 025X | Thoracic Aorta, Ascending/Arch |