Poorly Controlled Cardiovascular Risk Factors and ICD-9-CM Codes
Authors: Nicolas Rodondi, Eve A. Kerr, Joe V. Selby
Journal: Annals of Internal Medicine (2006)

Letters5 September 2006Poorly Controlled Cardiovascular Risk Factors and ICD-9-CM CodesNicolas Rodondi, MD, MAS, Eve A. Kerr, MD, MPH, and Joe V. Selby, MD, MPHNicolas Rodondi, MD, MASFrom University Outpatient Clinic, University of Lausanne, 1011 Lausanne, Switzerland; Ann Arbor Veterans Affairs Center for Practice Management and Outcomes Research and University of Michigan Medical School, Ann Arbor, MI 48113; and Kaiser Permanente, Oakland, CA 94612.Search for more papers by this author, Eve A. Kerr, MD, MPHFrom University Outpatient Clinic, University of Lausanne, 1011 Lausanne, Switzerland; Ann Arbor Veterans Affairs Center for Practice Management and Outcomes Research and University of Michigan Medical School, Ann Arbor, MI 48113; and Kaiser Permanente, Oakland, CA 94612.Search for more papers by this author, and Joe V. Selby, MD, MPHFrom University Outpatient Clinic, University of Lausanne, 1011 Lausanne, Switzerland; Ann Arbor Veterans Affairs Center for Practice Management and Outcomes Research and University of Michigan Medical School, Ann Arbor, MI 48113; and Kaiser Permanente, Oakland, CA 94612.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-145-5-200609050-00020 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail IN RESPONSE: We agree that it is difficult to accurately capture disease severity and control with commonly used ICD-9 classifications. For this reason, we used ICD-9-CM codes, along with ambulatory blood pressure measurements, laboratory results, and prescriptions, to identify the presence of hypertension, dyslipidemia, and diabetes mellitus but not to grade their degree of severity or control. As described in our Appendix Table 2 and in our Methods section, we used actual ambulatory blood pressure measurements and laboratory results from the electronic records at Kaiser Permanente to define control and pharmacy records to identify medication intensification. Previous studies have documented ...References1. Go AS, Hylek EM, Borowsky LH, Phillips KA, Selby JV, Singer DE. Warfarin use among ambulatory patients with nonvalvular atrial fibrillation: the anticoagulation and risk factors in atrial fibrillation (ATRIA) study. Ann Intern Med. 1999;131:927-34. [PMID: 10610643] LinkGoogle Scholar2. Karter AJ, Ferrara A, Liu JY, Moffet HH, Ackerson LM, Selby JV. Ethnic disparities in diabetic complications in an insured population. JAMA. 2002;287:2519-27. [PMID: 12020332] CrossrefMedlineGoogle Scholar Author, Article, and Disclosure InformationAuthors: Nicolas Rodondi, MD, MAS; Eve A. Kerr, MD, MPH; Joe V. Selby, MD, MPHAffiliations: From University Outpatient Clinic, University of Lausanne, 1011 Lausanne, Switzerland; Ann Arbor Veterans Affairs Center for Practice Management and Outcomes Research and University of Michigan Medical School, Ann Arbor, MI 48113; and Kaiser Permanente, Oakland, CA 94612.Disclosures: None disclosed. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetailsSee AlsoWarfarin Use among Ambulatory Patients with Nonvalvular Atrial Fibrillation: The AnTicoagulation and Risk Factors in Atrial Fibrillation (ATRIA) Study Alan S. Go , Elaine M. Hylek , Leila H. Borowsky , Kathleen A. Phillips , Joe V. Selby , and Daniel E. Singer Therapy Modifications in Response to Poorly Controlled Hypertension, Dyslipidemia, and Diabetes Mellitus Nicolas Rodondi , Tiffany Peng , Andrew J. Karter , Douglas C. Bauer , Eric Vittinghoff , Simon Tang , Daniel Pettitt , Eve A. Kerr , and Joe V. Selby Poorly Controlled Cardiovascular Risk Factors and ICD-9-CM Codes James S. Kennedy Metrics 5 September 2006Volume 145, Issue 5Page: 394-395KeywordsBlood pressureDiabetes mellitusDyslipidemiaHealth care qualityHypertensionMedical risk factorsMyocardial infarctionResearch laboratories ePublished: 5 September 2006 Issue Published: 5 September 2006 Copyright & PermissionsCopyright © 2006 by American College of Physicians. All Rights Reserved.PDF downloadLoading ...