biliary atresia extrahepatic biliary atresia https://github.com/monarch-initiative/mondo/issues/2663 biliary atresia, extrahepatic MEDGEN:1621383 icd11.foundation:1813934523 MONDO:0100285 NCIT:C97069 A disorder of infants in which there is progressive obliteration or discontinuity of the extrahepatic biliary system, resulting in obstruction of bile flow. OMIM:210500 GARD:0000886 EHBA UMLS:C4520983