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Analysis of Syndrome Definitions for Gastrointestinal Illness with ICD9 Codes for Gastroenteritis during the 2006-07 Norovirus Season in Boston
Content Type: Abstract
We report on a retrospective analysis of gastrointestinal syndrome definitions based on chief complaints and ICD9 diagnosis for gastroenteritis during the 2006-07 season of increased norovirus activity.… departments (EDs) in the city of Boston. For each patient-visit, data collected includes date of visit, chief complaint, gender, zipcode of residence, age, … are analyzed for statistical aberrations in the number of visits using the Early Aberration Reporting System (EARSv3). …