Gastrointestinal Bleeding Algorithm Defined in "Thromboembolic Stroke, Major Extracranial Bleeding, Gastrointestinal Bleeding, and Intracranial Hemorrhage following Direct Oral Anticoagulant Use in Patients Aged 65 and Older: An IPTW Analysis"

This report lists International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) diagnosis codes and algorithms used to define gastrointestinal bleeding in this request: "Thromboembolic Stroke, Major Extracranial Bleeding, Gastrointestinal Bleeding, and Intracranial Hemorrhage following Direct Oral Anticoagulant Use in Patients Aged 65 or Older: An Inverse Probability of Treatment Weighting (IPTW) Analysis."

For additional information about the algorithm and how it was defined relative to the cohort and exposures of interest in the inferential analysis, see the analysis page here.