ED diagnoses are mostly helpful for inpatient providers who are focused onpredicting those who may develop delirium during hospitalization.The REDEEM score overcomes many of the limitations in previouslyderived models by using variables routinely available in the EHR atthe beginning of the ED visit. This allows care providers to identifypatients who are high risk for delirium while in the ED, to deploy early active targeted screening, and to initiate immediate prevention strategies.