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Measure Collaboration (MC) Workspace

MC Workspace

The MC Workspace brings together a set of interconnected resources, tools, and processes to promote transparency and better interaction across stakeholder communities that develop, implement, and report electronic clinical quality measures (eCQM).

This color wheel depicts the Measure Collaboration Workspace and links to Measure Concept Resources consisting of Meaningful Measures Areas, CMS Measures Inventory Tool (CMIT), and Measures Under Consideration (MUC) List.

MC Workspace Components

The MC Workspace is comprised of four modules modules to assist clinicians, eCQM developers, implementers, and submitters during the entire eCQM lifecycle, from initial measure concept, through development, implementation, and reporting to CMS. Goals of the MC Workspace are to:

  • Provide detailed data element definitions to support implementation
  • Achieve harmonization across measures, data elements, and value sets
  • Improve alignment of measure concepts with clinical need and newly published guidelines
  • Demonstrate how new measures fill existing quality reporting gaps
  • Increase involvement by clinical experts and electronic health record (EHR) vendors during measure development
  • Offer transparency of test results during measure development
  • Provide notification of updates to measures under development

Access existing measures and the measures under consideration in the CMS Measures Inventory Tool (CMIT).


Available Components

eCQM Data Element Repository (DERep)

An online, searchable eCQM Data Element Repository provides all the data elements associated with eCQMs in CMS programs, as well as the definitions for each data element. This information will improve clarity for those implementing eCQMs.

Visit the eCQM Data Element Repository

Future Components

eCQM Concepts

The eCQM Concept Workspace will give users the ability to submit new measure concepts, align new measures with Meaningful Measures criteria, and identify whether similar measures exist. Feedback can help guide the measure developer to refine the concept and purpose behind a new measure to better suit the needs of the quality measurement reporting community.

New eCQM Clinical Workflow

Groups will be able to access all the measure development tools in the Collaborative Development Workspace and work in an iterative manner to perform measure development activities. Experts interested in a measure, measure endorsers, and other stakeholders can provide early comments, clinical workflow concerns, and guidance during the development lifecycle. Lessons learned from previous measure development efforts can help developers address implementation-specific issues that arise during development.

eCQM Test Results

The Draft Measure Test Results will offer transparency into the feasibility, reliability and validity testing, a testing scorecard, and additional characteristics of test sites, including types of health IT used, number of test sites included, and rating of each data element in the testing process for each measure.

Subscribe to MC Workspace Updates

MC Workspace participants will be able to sign up for alerts on the progress of evolving measures within a specialty area.

Electronic Clinical Quality Measure (eCQM) Data Element Repository (DERep)

The eCQM Data Element Repository (DERep) provides additional clarification for all the data elements associated with published and tested eCQMs used in CMS quality reporting programs as well as the definitions and clinical focus for each data element. An end user can filter information by data element, eCQM, union, QDM attribute, or QDM category and datatype data element.

The data elements provided are for use in eCQMs for 2019 and 2020 Performance and Reporting periods. Information contained within the DERep is derived from the eCQM specifications, Quality Data Model (QDM), and the Value Set Authority Center (VSAC). Each eCQM data element includes information about the value set or, the direct reference code (DRC), along with the QDM datatype, and the QDM attributes used by that data element. In the eCQMs for the 2019 Performance and Reporting period, QDM Version 5.3 information is displayed. In the eCQMs for the 2020 Performance and Reporting period, QDM Version 5.4 information is displayed.

Select a filter or search by term and click Apply to see results. Filter definitions are below:

eCQM Data Element

The eCQM data elements provide a listing of all data elements used in eCQMs for the selected CMS quality reporting and performance periods. Each eCQM data element includes information about the value set or the direct reference code, along with the QDM datatype and QDM attributes used by that data element.


The eCQM filter currently provides a list of the Eligible Hospital/Critical Access Hospital and Eligible Professional/Eligible Clinician measures used in CMS quality reporting programs. The individual eCQM pages provide the measure rationale and a list of all the eCQM data elements associated with the measure and information about each data element.

eCQM Unions
The eCQM Unions filter provides a listing of the eCQM unions represented in the Clinical Quality Language (CQL) of the eCQM specifications. For each eCQM union, the data elements contained within the eCQM union are listed. The eCQM union operator within the CQL is used to combine two or more data elements, arguments or expressions onto a list, such that any item contained in the combined list fulfills the criteria of the union. In the CMS113v7 Medical Induction Medication union example below, a medication contained within the combined list of Oxytocin and Dinoprostone will fulfill the criteria of the union.

Medical Induction Medication:
  • ["Medication, Administered": "Oxytocin"] union ["Medication, Administered": "Dinoprostone"]

  • Note: The eCQM unions shown do not include the CQL logic criteria to fulfill them, or elements present in the embedded logic of the union. For each eCQM union, the eCQMs that use the union are listed. Please refer to the respective eCQM specification for complete logic criteria associated with the unions.

    QDM Attribute

    The QDM Attributes filter provides a listing of all the QDM attribute definitions that can be reused in QDM datatype definitions in eCQMs for CMS quality reporting. Each attribute includes specific details about QDM data elements including the QDM definition and where it is used within data elements.

    QDM Categories and QDM Datatypes

    The QDM Categories and QDM Datatypes filter provides a listing of all QDM categories and datatypes used in eCQMs for CMS quality reporting. For each QDM category and datatype, the page provides the respective definition along with the available attribute groupings for the selected QDM datatype. A QDM Category consists of a single clinical concept identified by a value set or direct reference code (DRC). A QDM Datatype is the context in which each QDM Category is used to describe a part of the clinical care process.

    Last Updated: Dec 05, 2019