|  J37 |  | Chronic laryngitis and laryngotracheitis  | 
	
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		| UseAdditionalCode | code to identify: exposure to environmental tobacco smoke (Z77.22)
 exposure to tobacco smoke in the perinatal period (P96.81)
 history of tobacco dependence (Z87.891)
 infectious agent (B95-B97)
 occupational exposure to environmental tobacco smoke (Z57.31)
 tobacco dependence (F17.-)
 tobacco use (Z72.0)
 
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		|  J37.0 |  | Chronic laryngitis |  
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| Catarrhal laryngitis |  | Hypertrophic laryngitis |  | Sicca laryngitis |  
		| Excludes2 | acute laryngitis (J04.0) obstructive (acute) laryngitis (J05.0)
 
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		|  J37.1 |  | Chronic laryngotracheitis |  
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| Laryngitis, chronic, with tracheitis (chronic) |  | Tracheitis, chronic, with laryngitis |  
		| Excludes1 | chronic tracheitis (J42) 
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		| Excludes2 | acute laryngotracheitis (J04.2) acute tracheitis (J04.1)
 
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