Classification of unconjugated hyperbilirubinemia in children and infants beyond the neonatal period

G6PD: glucose-6-phosphate dehydrogenase.
* Crigler-Najjar type II is the milder form of Crigler-Najjar syndrome and typically presents in infancy or later childhood. Type I is the more severe form and tends to present in the neonatal period, which is not the focus of this algorithm.