Validation of Codes to Distinguish Between Claudication and Chronic Limb-Threatening Ischemia in Patients Undergoing Peripheral Vascular Intervention Using Medicare-Matched Registry Data.

Journal: Circulation. Cardiovascular quality and outcomes
Published Date: May 29, 2025

Abstract

BACKGROUND: The accuracy of contemporary administrative claims codes to discriminate between different phenotypes of peripheral artery disease is not well defined. We aimed to validate a predefined set of , codes used to distinguish between claudication and chronic limb-threatening ischemia (CLTI) and to optimize their diagnostic accuracy using a supervised machine-learning approach.

Authors

  • Sanuja Bose
    Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
  • David P Stonko
    Vanderbilt University School of Medicine, Nashville, TN, USA.
  • Sharon C Kiang
    Department of Surgery, Division of Vascular Surgery, Linda University School of Medicine, Loma Linda, CA; Department of Surgery, Division of Vascular Surgery, Veterans Affairs Loma Linda Healthcare System, Loma Linda, CA.
  • Daniel Roh
    Division of Vascular and Interventional Radiology, Department of Radiology, Linda University School of Medicine, Loma Linda, CA.
  • Jialin Mao
    Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, United States.
  • Andrew Cabrera
    School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA.
  • Chen Dun
    Department of Computer Science, Rice University, Houston, TX, USA.
  • Philip P Goodney
    VA Outcomes Group, White River Junction VA Medical Center, White River Junction, VT; The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth College, Hanover, NH.
  • James H Black
    Division of Vascular Surgery and Endovascular Therapy, Johns Hopkins University School of Medicine, Baltimore, MD. (S.B., D.P.S., J.H.B., C.W.H.).
  • Leigh Ann O'Banion
    University of California San Francisco, Fresno (L.A.O.).
  • Jesse A Columbo
    Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD. (C.D., J.A.C.).
  • Roger T Tomihama
    Department of Radiology, Section of Vascular and Interventional Radiology, Linda University School of Medicine, 11234 Anderson Street, Suite MC-2605E, Loma Linda, CA 92354. Electronic address: roger.tomihama@gmail.com.
  • Caitlin W Hicks
    Division of Vascular Surgery and Endovascular Therapy, 1466The Johns Hopkins Medical Institutions, Baltimore, MD, USA.

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