FAQs: Case Surveillance Modernization

On March 20, 2024, CDC ended the pause on Message Mapping Guide (MMG) onboarding. As part of agency-wide efforts to overhaul the CDC.gov website and streamline content, updates to this page are on hold. CDC expects to update this page in late spring 2024.  

Interested in onboarding? Learn how to implement an HL7® message mapping guide or contact edx@cdc.gov.

This page provides answers to common questions about implementing enhancements to case surveillance. CDC will continue updating this page with new information about this ongoing effort.

If your jurisdiction has questions that are not answered on this page, please contact CDC using this form.

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