|  Q40 |  | Other congenital malformations of upper alimentary tract  | 
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		|  Q40.0 |  | Congenital hypertrophic pyloric stenosis |  
		|  |  | 
| Congenital or infantile constriction |  | Congenital or infantile hypertrophy |  | Congenital or infantile spasm |  | Congenital or infantile stenosis |  | Congenital or infantile stricture |  |  | 
|  |  | 
	
		|  Q40.1 |  | Congenital hiatus hernia |  
		|  |  | 
| Congenital displacement of cardia through esophageal hiatus |  
		| Excludes1 | congenital diaphragmatic hernia (Q79.0) 
 |  |  | 
|  |  | 
	
		|  Q40.2 |  | Other specified congenital malformations of stomach |  
		|  |  | 
| Congenital displacement of stomach |  | Congenital diverticulum of stomach |  | Congenital hourglass stomach |  | Congenital duplication of stomach |  | Megalogastria |  | Microgastria |  |  | 
|  |  | 
	
		|  Q40.3 |  | Congenital malformation of stomach, unspecified |  | 
|  |  | 
	
		|  Q40.8 |  | Other specified congenital malformations of upper alimentary tract |  | 
|  |  | 
	
		|  Q40.9 |  | Congenital malformation of upper alimentary tract, unspecified |  
		|  |  | 
| Congenital anomaly of upper alimentary tract |  | Congenital deformity of upper alimentary tract |  |  |