W20 | 
		  | 
		Struck by thrown, projected or falling object  | 
	
	
		 |  | 
		
	
		| CodeFirst | 
		any associated: cataclysm (X34-X39) lightning strike (T75.00)
  | 
	 
	
		| Excludes1 | 
		falling object in machinery accident (W24, W28-W31) falling object in transport accident (V01-V99) object set in motion by explosion (W35-W40) object set in motion by firearm (W32-W34) struck by thrown sports equipment (W21.-)
  | 
	 
	
		| char7Note | 
		The appropriate 7th character is to be added to each code from category W20
  | 
	 
	
		| char7Def | 
		A: initial encounter D: subsequent encounter S: sequela
  | 
	 
 
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 |  | 
	
		 W20.0 | 
		  | 
		Struck by falling object in cave-in | 
	 
	
		 |  | 
		
	
		| Excludes2 | 
		asphyxiation due to cave-in (T71.21)
  | 
	 
 
 | 
	   | 
 |  | 
	
		 W20.1 | 
		  | 
		Struck by object due to collapse of building | 
	 
	
		 |  | 
		
	
		| Excludes1 | 
		struck by object due to collapse of burning building (X00.2, X02.2)
  | 
	 
 
 | 
	   | 
 |  | 
	
		 W20.8 | 
		  | 
		Other cause of strike by thrown, projected or falling object | 
	 
	
		 |  | 
		
	
		| Excludes1 | 
		struck by thrown sports equipment (W21.-)
  | 
	 
 
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	   |