A condition characterized by an abnormal increase of BILIRUBIN in the blood, which may result in JAUNDICE. Bilirubin, a breakdown product of HEME, is normally excreted in the BILE or further catabolized before excretion in the urine.

Synonyms: Hyperbilirubinemia, Hyperbilirubinemias, Bilirubinemias, Bilirubinemia