Q83 | 
		  | 
		Congenital malformations of breast  | 
	
	
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		| Excludes2 | 
		absence of pectoral muscle (Q79.8) hypoplasia of breast (N64.82) micromastia (N64.82)
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		 Q83.0 | 
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		Congenital absence of breast with absent nipple | 
	 
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		 Q83.1 | 
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		Accessory breast | 
	 
	
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		 Q83.2 | 
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		Absent nipple | 
	 
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		 Q83.3 | 
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		Accessory nipple | 
	 
	
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		 Q83.8 | 
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		Other congenital malformations of breast | 
	 
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		 Q83.9 | 
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		Congenital malformation of breast, unspecified | 
	 
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