ICD9 as a Surrogate for Chart Review in the Validation of a Chief Complaint Syndromic Surveillance System

The existing New York State Department of Health emergency department syndromic surveillance system has used patient’s chief complaint (CC) for assigning to six syndrome categories (Respiratory, Fever, Gastrointestinal, Neurological, Rash, Asthma). The sensitivity and specificity of the CC computer algorithms that assign CC to syndrome categories are determined by using chart review as the criterion standard. These analyses are used to refine the algorithm and to evaluate the effect of changes in the syndrome definitions.

July 30, 2018

West Virginia Department of Health and Human Resources Syndromic Surveillance for Mass Gatherings

Mass gatherings—defined as events attended by a sufficient number of people to strain the planning and response resources of the host state—pose unique surveillance challenges. Attendees can be at greater (or high) risk for injuries due to event activities or volume of people in an unstructured setting. Surveillance can help detect early signs of outbreaks associated with crowding and compromised sanitation.

March 08, 2019


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National Syndromic
Surveillance Program


The National Syndromic Surveillance Program (NSSP) is a collaboration among states and public health jurisdictions that contribute data to the BioSense Platform, public health practitioners who use local syndromic surveillance systems, Center for Disease Control and Prevention programs, other federal agencies, partner organizations, hospitals, healthcare professionals, and academic institutions.

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