The following report provides counts of incident warfarin users. In addition, the report provides prevalent patient counts for the top diagnoses and procedures 30 days before (pre‐index) and 30 days after (postindex) an incident warfarin dispensing. The time period for the request was October 1, 2010 to December 31, 2012. The package was distributed to 18 Data Partners on August 7, 2013. This report contains data from 18 Data Partners.