The 2027 Annual Update draft measure specifications are now available. Question and comment on Eligible Clinician eCQMs, Hospital - Inpatient eCQMs, and Hospital - Outpatient eCQM until December 19, 2025.
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US Core
US Core is a set of rules and best practices that help healthcare providers share patient information safely and efficiently across the United States. It uses the FHIR standard to align how data—such as patient records, medications, and lab results—is formatted and exchanged. These rules follow federal requirements, especially the U.S. Core Data for Interoperability (USCDI), ensuring hospitals and clinics share the most critical health data.
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Last Updated: Dec 09, 2025