Lyon Consensus • GORD Diagnostic AlgorithmPatient Education GuideAcid Exposure Time (AET %)Endoscopic FindingsNormal EndoscopyLA Grade A OesophagitisLA Grade B OesophagitisLA Grade C OesophagitisLA Grade D OesophagitisConfirmed Barrett's OesophagusDetermine Diagnostic YieldApply pH-impedance and endoscopic data to visualize the GORD diagnostic outcome.