TY - JOUR T1 - Accuracy of the ICD-9 Code for Identification of Patients with Wegener’s Granulomatosis JF - The Journal of Rheumatology JO - J Rheumatol SP - 474 LP - 474 DO - 10.3899/jrheum.091017 VL - 37 IS - 2 AU - MARY BOYD AU - ULRICH SPECKS AU - JAVIER DANIEL FINKIELMAN Y1 - 2010/02/01 UR - http://www.jrheum.org/content/37/2/474.abstract N2 - The International Classification of Diseases, 9th Revision (ICD-9) has been proposed as a valid tool for epidemiological research for some rheumatologic conditions1,2. We investigated the accuracy of the ICD-9 code 446.4 for the diagnosis of Wegener’s granulomatosis (WG). The Institutional Review Board of Saint Alexius Medical Center approved the study, and a waiver of informed consent was granted. Saint Alexius Medical Center is a 306-bed hospital, with primary and specialty clinics (including rheumatology, pulmonology, and nephrology). Patients coded for the first time with the ICD-9 code 446.4 were identified using the Health Data Management Reporter software (version 4.7.1000.11; 3M Health Information System Inc., St. … Address correspondence to Dr. J. Finkielman, Intensive Care Unit, Saint Alexius Medical Center, 900 East Broadway Ave., Bismarck, ND 58501. E-mail: jfinkielman{at}primecare.org ER -