AESI Case Definition Companion Guide: Thrombosis and Thromboembolism

This document collates into a single document the SPEAC Thrombosis and Thromboembolism  resources (Risk factors, background rates, ICD9/10-CM & MedDRA codes), tools (data abstraction & interpretation form, tabular summary of key case definition criteria and algorithm for level of certainty determination, pictorial level of certainty algorithm) and guidance (real time investigation, data collection, analysis and presentation This guide can be used by stakeholders to assess the occurrence of Thrombosis and Thromboembolism  in several settings including as an adverse event following immunization. Note: this guide accompanies the Thrombosis and Thromboembolism case definition specifically. A separate guide will be prepared for Thrombocytopenia Thrombosis Syndrome.