DO_rare_slim bilirubin metabolic disorder Crigler-Najjar syndrome SNOMEDCT_US_2025_09_01:8933000 MESH:D003414 MESH:D003414 UMLS_CUI:C0010324 MIM:218800 DOID:3803 ORDO:205 A bilirubin metabolic disorder that involves a build up of bilirubin as bilirubin is not being broken down as a result of a lack or deficiency of the enzyme uridine diphosphate glycosyltransferase (UGT). Bilirubin UDP glucuronyl transferase deficiency Crigler Najjar syndrome Crigler-Najjar syndrome, type I OMIM mapping confirmed by DO. [SN]. disease_ontology