Umbilical hernia obsolete umbilical hernia https://github.com/monarch-initiative/mondo/issues/1777 https://www.malacards.org/card/umbilical_hernia true NCIT:C118375 Represents finding. ICD9:553.1 DOID:0060321 MONDO:0000747 OBSOLETE. A congenital defect in the muscles of the abdominal wall that results in the intestines and other abdominal organs developing outside the abdominal wall covered in a sac. SCTID:396347007 ICD9:756.72 MESH:D006554 HP:0001537