ASGE 2019Common Bile Duct Stone RiskPatient ExplanationPredictors & LabsTotal Bilirubin (mg/dL)CBD Stone on USDirect visualizationAscending CholagitisFever + Jaundice + PainDilated CBD (>6mm)Adjust for age/cholecystectomyAbnormal ALT/AST/ALPAny value > upper limitAge > 55 YearsAge-related risk predictorStratify Biliary RiskBiliary ProcessorCalculate the ASGE probability of choledocholithiasis to select appropriate imaging and intervention.