Stroke Research Today is a free monthly online journal that collates and summarizes the latest research about Stroke, including details on treatment, recovery, rehabilitation, signs, symptoms.

Accuracy and yield of ICD-9 codes for identifying children with ischemic stroke.

Golomb MR, Garg BP, Saha C, Williams LS

Division of Pediatric Neurology, Indiana University School of Medicine, Riley Hospital for Children Room 1757702 Barnhill Drive, Indianapolis, IN 46202, USA. mgolomb@iupui.edu

The medical records of all children at our hospital with International Classification of Diseases 9th revision (ICD-9) codes 342, 433 to 438, or 767 from May 1999 to May 2004 were reviewed to assess whether they had stroke (any type) or, specifically, arterial ischemic stroke (AIS). Code accuracy ranged from 37 to 88%; each code missed more than half of AIS identified by the combined code search. Studies are needed to determine whether other local and national ICD-9 databases have similar limitations.

Published 12 December 2006 in Neurology, 67(11): 2053-5.
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