Unconjugated hyperbilirubinemia-
Normal adults contain less than 1mg/dL of total bilirubin out of which less than 0.25 mg/dL is conjugated bilirubin. Unconjugated bilirubin is estimated by substracting direct bilirubin value (Harsh mohan page 593)
85% of the total should be indirect
Hemolytic anemia
Haemoglobin destruction ( bilirubin production)
50% of the total should be indirect
G.I.T