Impairment of the bile flow caused by an obstruction in the portion of the bile duct system located outside of the liver. The disease is Monarch Disease Ontology id MONDO_0006757 (extrahepatic cholestasis). Also known as: cholestasis of extrahepatic bile duct, extrahepatic bile duct cholestasis, extrahepatic biliary stasis, extrahepatic cholestasis (finding), extrahepatic obstructive biliary disease.