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Adult Core Set Reporting Resources

Key resources for state reporting of the Core Set of health care quality measures for adults enrolled in Medicaid (the Adult Core Set) are included in the table below. CMS will publish the resources for reporting the 2027 Adult Core Set in early 2027.

2026 Core Set Reporting Resources

State Reporting Starts: Fall 2026

Measure List and Technical Specifications2026 Adult Core Set Measure List
2026 Adult Resource Manual and Technical Specifications
Summary of Updates to the 2026 Adult Core Set Resource Manual and Technical Specifications
Value Set Directories2026 Adult Core Set HEDIS Value Set Directory
2026 Adult Core Set Non-HEDIS Value Set Directory
2026 COB Value Set Directory (Coming Soon)
Additional Technical Assistance Resources2026 Data Quality Checklist
2026 Adult Measurement Period Table
Frequently Asked Questions: Medicaid and CHIP Core Sets Mandatory Reporting
Measure-Specific Attribution Guidance for the 2026 Core Set Measures
Calculating State-Level Rates Using Data from Multiple Reporting Units
Calculating the Plan All-Cause Readmissions (PCR) Measure in the 2026 Adult and Health Home Core Sets
Overview of the Dental and Oral Health Services Measures in the 2026 Child, Adult, and 1945A Health Home Core Sets
CAHPS Fact Sheet
Transitioning to Digital Quality Measures in the 2026 Child, Adult, and Health Home Core Sets 
Guidance for Reporting in the Quality Measure Reporting (QMR) SystemState Preview Reports, State-Specific Comments, and Additional Reporting Resources
Reporting Medicaid and Separate CHIP Data in the QMR System
Reporting Stratified Results in the QMR System

Archived Reporting Resources

For previous years’ technical specifications and value set directories, please email MACQualityTA@cms.hhs.gov.

Technical Assistance and Analytic Support Program

CMS supports states' efforts to measure and improve health care quality for children and adults enrolled in Medicaid and CHIP. The Technical Assistance and Analytic Support (TA/AS) Program supports states' quality measurement reporting and use these data to improve the quality of care. For more information, see the TA/AS Program fact sheet.

Questions or requests for technical assistance related to the Adult Core Set or quality improvement initiatives can be submitted to MACQualityTA@cms.hhs.gov. 

Technical Assistance Webinars

Additional Technical Assistance Resources