Diagnostic Errors in Hospitalized Patients

Diagnostic errors in hospitalized patients are a leading cause of preventable morbidity and mortality.Significant challenges in defining and measuring diagnostic errors and underlying process failure points have led to considerable variability in reported rates of diagnostic errors and adverse outcomes.In this article, we explore the diagnostic process and its discrete components, emphasizing the centrality of the patient in decisionmaking as well as the continuous nature of the process.We review the incidence of diagnostic errors in hospitalized patients and different methodological approaches that have been used to arrive at these estimates.We discuss different but interdependent provider-and system-related process-failure points that lead to diagnostic errors.We examine specific challenges related to measurement of diagnostic errors and describe traditional and novel approaches that are being used to obtain the most precise estimates.Finally, we examine various patient-, provider-, and organizational-level interventions that have been proposed to improve diagnostic safety in hospitalized patients.