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  • The Food Insecurity Data Set has been consensus approved by the Gravity community.  Thank you all for your votes!
    • We are currently reviewing and addressing all submitted comments.  Please respond to any emails you receive from us regarding your vote comments.
    • The votes, comments, and final dispositions will be posted here on Confluence in January 2020.
  • Seasons Greetings!  Thank you all for joining us on December 12 for the last meeting of 2019.
    • We are currently in the process of scheduling activities for 2020 Q1.  We will post updates here on Confluence and send email updates to our registered community list.
    • If you would like to join the project as a registered member, click here.

Gravity in the News

Become a Gravity Project Sponsor

SIREN and EMI Advisors are currently seeking additional Gravity Project sponsors. This is an opportunity to be recognized as contributing to this project, which is receiving considerable attention. If your organization is interested in becoming a sponsor, please click on the button below to submit your contact information.  

Join the Gravity Project

The success of the Gravity Project depends on the contribution of volunteers who are eager to make rapid progress on the standardization of social determinants of health data.  We need experts to contribute to and validate definitions for SDH related data elements and value sets.

Participants are asked to join the project at any time either as a Committed Member or Other Interested Party as part of the HL7 Consensus Process.  To join the project, sign up here.  

  • To check your project membership status, click here.  If you wish to change your membership from Other Interested Party to Committed Member, please send an email request to .
  • NOTE:  Both member types can submit comments on project documentation.  However, only Committed Members may vote on final documentation.  If you would like to have voting rights, please change your membership status or join the project as a Committed Member.


The Social Interventions Research and Evaluation Network (SIREN), with funding from the Robert Wood Johnson Foundation and in partnership with EMI Advisors, LLC, is pleased to invite you to join the Gravity Project. Driven by the growing interest in capturing social risk and protective factor data in health care settings, the Gravity Project brings industry leaders together to identify and harmonize social risk and protective factor data for interoperable electronic health information exchange.

The Gravity Project will convene a public collaborative process from April to December 2019 to accomplish the following goals for the social domains of food security, housing stability and quality, and transportation access:

  • Develop use cases to support documentation of specific social domains across screening, diagnosis, goal setting, and intervention activities within EHR and related systems;
  • Identify common data elements and their associated value sets to support the uses cases;
  • Develop a consensus-based set of recommendations on how best to capture and group these data elements for interoperable electronic exchange and aggregation; and
  • Initiate development of an HL7® Fast Health Interoperability Resource (FHIR®) Implementation Guide based on the defined use cases and associated data sets that will be finalized in the next phase of work.

Project objectives will be accomplished through weekly one-hour virtual meetings and collaborative project product development through the HL7 project confluence page.

Upcoming Gravity Project Meeting




Webinar Information

Homework Documents & Links

To be determined

4:00-5:00pm ET / 1:00-2:00pm PT


We are currently determining the schedule for 2020 Q1.

Please log on before dialing in and enter the provided participant ID.


Dial-In:  (415)655-0003

Meeting ID:  738 112 808

Password (for app users):  gravity

Email comments and feedback to

Email sponsorship inquiries to


Click here for project documentation and deliverables.

Upcoming SDOH-CC Connectathon Participant Meeting




Webinar Information

Homework Documents & Links

22 January 2020

3:00-4:00pm ET / 12:00-1:00pm PT

Agenda to be posted shortly

Please join the meeting from your computer, tablet or smartphone.


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To be added shortly

Gravity Project Steering Committee

Steering Committee meetings are currently held on the last Monday of each month.  

Steering Committee Members

Mark CarrozzaAmerican Academy of Family Physicians (AAFP)

Keri Christensen

National Committee for Quality Assurance (NCQA)

Chris Dymek

HHS Agency for Healthcare Research and Quality (AHRQ)

Margo Edmunds

Academy Health/ National Interoperability Collaborative
Andrea GelzerAmeriHealth Caritas
Tom GiannulliAmerican Medical Association

Cara James

CMS Office of Minority Health

Nafisa Jiwani

CMS Innovation Office (detail), Centers for Disease Control (CDC)

David Kendrick

MyHealth Network

Jessica Khan


Lisa Lehmann

Department of Veterans Affairs (VA)

Brenna Long

Department of Veterans Affairs (VA)

Sam Meklir

HHS Office of the National Coordinator (ONC)

Nancy Myers

American Hospital Association Center for Health Innovation

Tom Novak


Pam Owens


Michelle Proser

National Association of Community Health Centers (NACHC)
Duane ReynoldsAmerican Hospital Association Institute for Diversity and Health Equity
Sheila ShapiroUnitedHealthcare Clinical Services

Walter Suarez

Kaiser Permanente

Al Taylor


Bill Winfrey

HHS Centers for Medicare & Medicaid Services  (CMS) Innovation Center

Carlos Villarreal

Blue Cross Blue Shield Association

Project Timeline

Project Contacts





Evelyn GallegoProgram ManagerEMI Advisors,
Lynette ElliottProject ManagerEMI Advisors,
Melinda MorrowProject AnalystEMI Advisors,
Lisa NelsonValue Sets Subject Matter
Linda HydeValue Sets Subject Matter ExpertEMI Advisors,
Caroline FichtenbergManaging



Thank you for leading this important work. I wonder about the "out of scope" disclaimer about not getting into the actual social needs screening instruments and items. The question is can you standardize the answers without standardizing the questions? Anyway, that is the topic I'm most interested in and am actively engaged in with Epic, and would be happy to participate/contribute as appropriate.
Greetings! Great start on the work related SDOH that is on the Confluence page. The following should be considered to be added:

Medicaid Information Technology Architecture (MITA)

Homeless Management Information System (HMIS)

Open Referral - I can introduce you to their Executive Director Greg Bloom

Among the uses for standardized SDOH data, regulatory reporting was not mentioned. Obviously there are limited regulatory reporting requirements (in part due to the limited standardization of data). It could be beneficial to develop the standard in a way that makes the data easy to be consumed by future regulators with minimal/zero click reporting involvement by provider staff. We can take inspiration from the approach to the XBRL data standard used by Australia and the Netherlands to automate corporate reporting.

Hope this helps!
Excited to be a part of the collaborative! From a community mobilization and engagement perspective, the materials offered on The Gravity Project Website (charter, glossary and standards/initiatives) provide a clear grounding of the project for members, define the parameters of the project and set the stage for next steps.
In addition to the use cases described in step 1 of the Scope Statement, it would be helpful to keep the six uses described the NAM 2014 Phase 2 report in mind to ensure that the data will meet multiple cases.
Institute of Medicine (2014) Capturing Social and Behavioral Domains and Measures in Electronic Health Records: Phase 2. National Academies Press, Washington DC.
About 1,095 SDH codes have been highlighted via the SIREN Social Risk Codes review (relating to 20 social risk domains). This is a very comprehensive amount, but may be somewhat confusing. It will be interesting to see how we will narrow down such a vast amount of codes. Will we focus on ICD-10, LOINC, SNOMED, and CPT all together, or start with just one of these code types initially?
I recommend adding the Homeless Management Information System (HMIS) to the "Relevant Work in Social Determinants of Health" resource page.

Think that it is helpful to keep in mind HUD's definitions of homelessness and housing instability when developing SDoH housing instability data element definitions
Minor comment on charter - in the first paragraph of 5.2.19 V 1.4 of charter - I think you mean National Quality FORUM (not National Quality Framework) ADMIN NOTE: Updated in Charter v1.5
suggested additions to list of materials -
(1) Another standard SDH code set is contained in the International Classification of Primary Care, 2nd edition, in its Chapter Z. ICPC-2 is the primary medical care coding and classification standard for several countries, is mapped to ICD-10 (11), and to a defined subset of SNOMED CT, the SNOMED GP-FP Reference Set.
(2) Can add to list of vendors with SDH capabilities RiverStar Software, which offers a Community Care Hub product that combines SDH screening with community service agency referral support and tracking. Can see at:
Relative Standards and Initiatives -
HL7 CDA® R2 Implementation Guide: C-CDA R2.1 Supplemental Templates for Nutrition, Release 1
This Implementation Guide is clinical inpatient oriented however the care plan component is worth evaluating as a pattern and part of a use case where at risk patient needs.
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  1. Addressing Social Determinants to Improve Patient Care and Promote Health Equity: An American College of Physicians Position Paper