| Code | Title | 
					
				| – | Top Categories | 
		
					
				| 0 | Medical and Surgical | 
					
				| 0B | Respiratory System | 
					
				| 0BN | Release
					Respiratory System, Release | 
					
				| 0BN1 | Trachea | 
					
				| 0BN2 | Carina | 
					
				| 0BN3 | Main Bronchus, Right | 
					
				| 0BN4 | Upper Lobe Bronchus, Right | 
					
				| 0BN5 | Middle Lobe Bronchus, Right | 
					
				| 0BN6 | Lower Lobe Bronchus, Right | 
					
				| 0BN7 | Main Bronchus, Left | 
					
				| 0BN8 | Upper Lobe Bronchus, Left | 
					
				| 0BN9 | Lingula Bronchus | 
					
				| 0BNB | Lower Lobe Bronchus, Left | 
					
				| 0BNC | Upper Lung Lobe, Right | 
					
				| 0BND | Middle Lung Lobe, Right | 
					
				| 0BNF | Lower Lung Lobe, Right | 
					
				| 0BNG | Upper Lung Lobe, Left | 
					
				| 0BNH | Lung Lingula | 
					
				| 0BNJ | Lower Lung Lobe, Left | 
					
				| 0BNK | Lung, Right | 
					
				| 0BNL | Lung, Left | 
					
				| 0BNM | Lungs, Bilateral | 
					
				| 0BNN | Pleura, Right | 
					
				| 0BNP | Pleura, Left | 
					
				| 0BNT | Diaphragm |