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Research Letter
December 17, 2018

Temporal Trends in Unstable Angina Diagnosis Codes for Outpatient Percutaneous Coronary Interventions

Author Affiliations
  • 1Brigham and Women’s Hospital Heart & Vascular Center, Harvard Medical School, Boston, Massachusetts
  • 2Richard and Susan Smith Center for Outcomes Research in Cardiology, Division of Cardiology, Beth Israel Deaconess Medical and Harvard Medical School, Boston, Massachusetts
  • 3Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor
  • 4Division of Cardiovascular Medicine, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
  • 5VA New England Healthcare System, Boston University School of Medicine, Boston, Massachusetts
JAMA Intern Med. Published online December 17, 2018. doi:10.1001/jamainternmed.2018.5124

Recent health care policy initiatives have focused on reducing misuse or overuse of expensive cardiovascular procedures. The appropriate use criteria (AUC) for coronary revascularization were released in 2009 with the aim of reducing inappropriate percutaneous coronary interventions (PCIs).1 In addition, national efforts to provide hospitals with information about their performance on PCI appropriateness began in 2011.2

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