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Helpful Documents

  • PAC Landscape Analysis Report (June 2019): Link to PDF

  • Summary Report of the Technical Advisory Workgroup Roundtable (April 2019): Link to PDF

  • MLN Audio Recording 3/19/19: Data Interoperability across the Continuum: CMS Data Element Library Call: Link

  • MLN Presentation 3/19/19: Data Interoperability across the Continuum: CMS Data Element Library Call: Link

  • DEL User Guide: Link to PDF


Frequently Asked Questions

What is a data element?

In the context of the CMS Data Element Library and post-acute care, data elements are discrete questions and responses that are found in the patient/resident assessment instruments that post-acute care providers use to submit data to CMS.

I am a PAC provider, does the DEL change how I submit data now?

No- the DEL is a repository of CMS assessment data elements (questions and responses). It does not affect provider data submission processes. Providers and vendors must still follow the submission specifications required for submitting data to CMS electronically.

How frequently will the DEL content be updated?

As CMS assessment content changes, the Data Element Library will be updated with the most current information.

Will the Functional Assessment Standardized Items (FASI) be included in the DEL?

Yes. The Functional Assessment Standardized Items (FASI) are currently under development and will be included when they are complete. CMS will deliver an announcement via the listserv when these items are added to the Data Element Library.

What is the Data Element Library (DEL)?

The Data Element Library (DEL) is a centralized resource for CMS's required Post-Acute Care (PAC) assessment instrument data elements (e.g. questions and responses), and their associated mappings to nationally accepted health information technology (IT) standards.

How do I learn more about the DEL and obtain help?

You can learn more about the Data Element Library by:

  • Subscribing to the CMS DEL ListServ for updates and learning opportunities;
  • Reviewing the DEL User Guide, which can be found on the DEL Help page.

For other questions or assistance using the DEL, please contact the QualityNet Help Desk at 866-288-8912 or send an email to Please note the hours of operation for the QualityNet Help Desk are 7am to 7pm CST.

Do providers have to use the DEL?

There are no requirements to use the DEL contents. However, CMS assessment stakeholders may use the DEL resource to integrate CMS assessment content into their electronic health records (EHRs) and utilize mapped health IT standards to support interoperable health information exchange. In addition, DEL users could save time and resources by having CMS assessment information in one centralized database, rather than having to search for assessment content across multiple data sources.

Is there patient level data in the DEL?

The Data Element Library contains no patient health data. The DEL only contains CMS assessment data elements (questions and responses) and their attributes, including how the data elements are linked to nationally accepted Health Information Technology (IT) standards.

Who can use the DEL and for what purposes?

The DEL is a public resource for use by providers, vendors, researchers, and the general public. End users will be able to search and obtain reports on CMS assessment contents, including questions, response options, relevant details, and related health IT standards, in one location.