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Surveillance modernization efforts emphasize the potential use of electronic health record (EHR) data to inform public health surveillance and prevention. However, EHR data streams vary widely in their completeness, accuracy, and representativeness. This publication describes a validation process developed by the Multi-State EHR-Based Network for Disease Surveillance (MENDS) pilot project to identify and resolve data quality issues that could affect chronic disease prevalence estimates.

The questions included in this FAQ were collected from the ASTHO Connects session, “TEFCA Overview and Perspectives from the Field” held on April 4, 2024 and follow-on questions from the session, as well as the ONC and CDC’s TEFCA Community of Practice. The questions answered in this document are not exhaustive: this FAQ will be considered a living document with updates made as ASTHO and its partners are able to answer additional questions.