|  J45 |  | Asthma   | 
	
		|  |  | 
	
		| Includes | allergic (predominantly) asthma allergic bronchitis NOS
 allergic rhinitis with asthma
 atopic asthma
 extrinsic allergic asthma
 hay fever with asthma
 idiosyncratic asthma
 intrinsic nonallergic asthma
 nonallergic asthma
 
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		| UseAdditionalCode | code to identify: eosinophilic asthma (J82.83)
 exposure to environmental tobacco smoke (Z77.22)
 exposure to tobacco smoke in the perinatal period (P96.81)
 history of tobacco dependence (Z87.891)
 occupational exposure to environmental tobacco smoke (Z57.31)
 tobacco dependence (F17.-)
 tobacco use (Z72.0)
 
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		| Excludes1 | detergent asthma (J69.8) miner's asthma (J60)
 wheezing NOS (R06.2)
 wood asthma (J67.8)
 
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		| Excludes2 | asthma with chronic obstructive pulmonary disease (J44.89) chronic asthmatic (obstructive) bronchitis (J44.89)
 chronic obstructive asthma (J44.89)
 other specified chronic obstructive pulmonary disease (J44.89)
 
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		|  J45.2 |  | Mild intermittent asthma |  |  |  | 
	
		|  J45.20 |  | Mild intermittent asthma, uncomplicated |  
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| Mild intermittent asthma NOS |  |  |  |  |  | 
	
		|  J45.21 |  | Mild intermittent asthma with (acute) exacerbation |  |  |  |  | 
	
		|  J45.22 |  | Mild intermittent asthma with status asthmaticus |  |  | 
|  |  | 
	
		|  J45.3 |  | Mild persistent asthma |  |  |  | 
	
		|  J45.30 |  | Mild persistent asthma, uncomplicated |  
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| Mild persistent asthma NOS |  |  |  |  |  | 
	
		|  J45.31 |  | Mild persistent asthma with (acute) exacerbation |  |  |  |  | 
	
		|  J45.32 |  | Mild persistent asthma with status asthmaticus |  |  | 
|  |  | 
	
		|  J45.4 |  | Moderate persistent asthma |  |  |  | 
	
		|  J45.40 |  | Moderate persistent asthma, uncomplicated |  
		|  |  | 
| Moderate persistent asthma NOS |  |  |  |  |  | 
	
		|  J45.41 |  | Moderate persistent asthma with (acute) exacerbation |  |  |  |  | 
	
		|  J45.42 |  | Moderate persistent asthma with status asthmaticus |  |  | 
|  |  | 
	
		|  J45.5 |  | Severe persistent asthma |  |  |  | 
	
		|  J45.50 |  | Severe persistent asthma, uncomplicated |  
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| Severe persistent asthma NOS |  |  |  |  |  | 
	
		|  J45.51 |  | Severe persistent asthma with (acute) exacerbation |  |  |  |  | 
	
		|  J45.52 |  | Severe persistent asthma with status asthmaticus |  |  | 
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		|  J45.9 |  | Other and unspecified asthma |  |  |  | 
	
		|  J45.90 |  | Unspecified asthma |  
		|  |  | 
| Asthmatic bronchitis NOS |  | Childhood asthma NOS |  | Late onset asthma |  |  |  |  | 
	
		|  J45.901 |  | Unspecified asthma with (acute) exacerbation |  |  |  |  | 
	
		|  J45.902 |  | Unspecified asthma with status asthmaticus |  |  |  |  | 
	
		|  J45.909 |  | Unspecified asthma, uncomplicated |  
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| Asthma NOS |  
		| Excludes2 | lung diseases due to external agents (J60-J70) 
 |  |  |  |  |  |  | 
	
		|  J45.99 |  | Other asthma |  |  |  | 
	
		|  J45.990 |  | Exercise induced bronchospasm |  |  |  |  | 
	
		|  J45.991 |  | Cough variant asthma |  |  |  |  | 
	
		|  J45.998 |  | Other asthma |  |  |  |