W40 | 
		  | 
		Explosion of other materials  | 
	
	
		 |  | 
		
	
		| Excludes1 | 
		assault by explosive material (X96) explosion involving legal intervention (Y35.1-) explosion involving military or war operations (Y36.0-, Y36.2-) intentional self-harm by explosive material (X75)
  | 
	 
	
		| char7Note | 
		The appropriate 7th character is to be added to each code from category W40
  | 
	 
	
		| char7Def | 
		A: initial encounter D: subsequent encounter S: sequela
  | 
	 
 
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		 W40.0 | 
		  | 
		Explosion of blasting material | 
	 
	
		 |  | 
		
| Explosion of blasting cap |  | Explosion of detonator |  | Explosion of dynamite |  | Explosion of explosive (any) used in blasting operations |   
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	   | 
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		 W40.1 | 
		  | 
		Explosion of explosive gases | 
	 
	
		 |  | 
		
| Explosion of acetylene |  | Explosion of butane |  | Explosion of coal gas |  | Explosion in mine NOS |  | Explosion of explosive gas |  | Explosion of fire damp |  | Explosion of gasoline fumes |  | Explosion of methane |  | Explosion of propane |   
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	   | 
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		 W40.8 | 
		  | 
		Explosion of other specified explosive materials | 
	 
	
		 |  | 
		
| Explosion in dump NOS |  | Explosion in factory NOS |  | Explosion in grain store |  | Explosion in munitions |  	
		| Excludes1 | 
		explosion involving legal intervention (Y35.1-) explosion involving military or war operations (Y36.0-, Y36.2-)
  | 
	 
 
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	   | 
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		 W40.9 | 
		  | 
		Explosion of unspecified explosive materials | 
	 
	
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