Background: Thromboprophylaxis of hospitalized COVID-19 patients – including extended, post-discharge thromboprophylaxis in high-risk patients – has been evaluated in multiple randomized trials and incorporated into antithrombotic guidelines. Yet, provider adoption of best practices remains sub-optimal. Our aim was to assess whether an electronic health record (EHR)-agnostic clinical decision support (CDS) tool incorporating the validated IMPROVE-DD [...]