| Code | Title | 
					
				| – | Top Categories | 
		
					
				| 0 | Medical and Surgical | 
					
				| 0N | Head and Facial Bones | 
					
				| 0NB | Excision
					Head and Facial Bones, Excision | 
					
				| 0NB0 | Skull | 
					
				| 0NB00 | Open | 
					
				| 0NB00Z | No Device | 
					
				| 0NB00ZX | Diagnostic
					Excision of Skull, Open Approach, Diagnostic | 
					
				| 0NB00ZZ | No Qualifier
					Excision of Skull, Open Approach | 
					
				| 0NB03 | Percutaneous | 
					
				| 0NB03Z | No Device | 
					
				| 0NB03ZX | Diagnostic
					Excision of Skull, Percutaneous Approach, Diagnostic | 
					
				| 0NB03ZZ | No Qualifier
					Excision of Skull, Percutaneous Approach | 
					
				| 0NB04 | Percutaneous Endoscopic | 
					
				| 0NB04Z | No Device | 
					
				| 0NB04ZX | Diagnostic
					Excision of Skull, Percutaneous Endoscopic Approach, Diagnostic | 
					
				| 0NB04ZZ | No Qualifier
					Excision of Skull, Percutaneous Endoscopic Approach |