Hernia (K40-K46)
K42: Umbilical hernia

includes
paraumbilical hernia

excludes1
omphalocele (Q79.2)
K42.0: Umbilical hernia with obstruction, without gangrene
K42.1: Umbilical hernia with gangrene
K42.9: Umbilical hernia without obstruction or gangrene

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