Change in Medicare-Match Process and Procedures – Please Note:

Medicare-Match data are only available for EVAR, OAAA, PVI, TEVAR, CAS, INFRA and SUPRA datasets. Please see the new process here.

  • Timescales: access to Medicare-Match is provided in order of request and investigators should allow at least 3-6 months after the National Arterial RAC approval
  • Use of the Medicare-matched data are governed by a Data Use Agreement (DUA) between Weill Cornell Medical College and the Center for Medicaid and Medicare Services (CMS). Data are kept on a secure server at Weill Cornell Medical College, Science and Infrastructure Center.
  • As the Medicare individual level data are subject to Data Use Agreements (DUAs) with the Centers for Medicare and Medicaid Services (CMS), no individual level data can be shared.
  • Requests for analyses of Medicare-Matched data will be reviewed and administered by the VISION team once a National RAC submission is approved. detailed instructions will be provided to PIs after approval.
  • As the volume of requests for VQI-Medicare analyses is substantial and some projects requesting Medicare-match are not possible due to limitations in the Medicare-match datasets, or may not benefit from Medicare-match data, the VISION Data Core will review projects and assign priority based on the following additional criteria:
    • Clear need for Medicare-derived outcomes in order to meet project goals.
    • Feasibility and clarity of analytic plan



Coding algorithms

Open AAA Codes


EVAR Codes

Carotid Codes



Peer-reviewed publications

  • Hoel, et al. Pilot Study For Long Term Outcome Assessment (2017) Hoel Pilot Study
  • Columbo, et al. Validating Publicly Available Crosswalks for ICD9-ICD10 Translation (2018) ICD-9 to ICD-10
  • Columbo, et al. A Comparison of Reintervention Rates (2019) Columbo Adjudication
  • Wanken, et al. Characterization of Endovascular Abdominal Aortic Aneurysm Repair Surveillance (2020) Wanken et al