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According to the American Medical Association, the periods of life in the postnatal period include all periods after birth including the neonatal or immediate postpartum period. It may be challenging to differentiate a congenital disorder from a neonatal disorder. A condition may be present at birth, i.e. congenital; however, clinical manifestations may take longer to appear, i.e. during the neonatal period (e.g. 14333004 |Alloimmune neonatal neutropenia (disorder)|). |
When modeling a congenital neoplasm disorder, the attribute-value relationship of Pathological process (attribute) = Pathological development process (qualifier value) is not used.
Congenital versus acquired
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