Q83: Congenital malformations of breast

Q83.9: Congenital malformation of breast, unspecified

The breast is made up of fatty tissue, connective tissue and the mammary gland. Milk is produced in the mammary gland during and after pregnancy so that the child can be fed. Milk is dispensed through the nipple.

Your breast may be larger or smaller than normal. Your breast may also have an abnormal shape.