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Surveillance for nationally notifiable infectious conditions using ICD-9-CM diagnosis codes in the VA ESSENCE biosurveillance system
Content Type: Abstract
The Electronic Surveillance System for the Early Notification of Community-based Epidemics (ESSENCE) obtains electronic data from 153 Veterans Affairs (VA) Medical Centers plus outpatient clinics in all 50 states, American Samoa, Guam,… read more… Affairs (VA) Medical Centers plus outpatient clinics in all 50 states, American Samoa, Guam, Philippines, Puerto … from 153 VA Medical Centers plus outpatient clinics in all 50 states, American Samoa, Guam, Philippines, Puerto … data from outpatient and emergency department visits at all VA facilities.1 For this review, visits with an ICD-9-CM …