phenotype affects entity Umbilical hernia SNOMEDCT_US:396347007 HP:0001537 UMLS:C0019322 Protrusion of abdominal contents through a defect in the abdominal wall musculature around the umbilicus. Skin and subcutaneous tissue overlie the defect. Fyler:4445 Umbilical hernias Abnormal umbilicus morphology Hernia of the abdominal wall umbilical hernia abdominal viscera herniated umbilical cord