In this time of great need, the i2b2 tranSMART Foundation and the i2b2 community are working to combine national and international data for analyses of the COVID-19 affliction on our patients.

Led by Dr. Isaac Kohane, Harvard Medical School, the effort is called the Consortium for Clinical Characterization of Covid19 by EHR (4CE) and pronounced “forsee”. The 4CE website can be reached at:

The 4CE Consortium is a globally distributed collaboration across health centers. In this first phase we are reaching out to other collaborators to join our 96 hospital collaboration who also have EHR data to share to augment the breadth and depth of the analyses we jointly work on.

If you are interested in joining the consortium and to contribute data,  please fill in the information the form below.

Join the 4CE Consortium

Please fill out the information requested below and please include information about your organization and the data that you will contribute. We will get back to you with more details.

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If you would like to send us a message or ask questions, please send email to:

If you would like to make a donation to support this project or similar initiatives of the i2b2 tranSMART Foundation, click the button below:



Goals of this effort

Below is a short overview of the goals of the project, a description of what we are looking for from you, and an i2b2 script to extract the data.



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ACT Covid Ontology

i2b2 ACT COVID ontology that has been developed

An initial ACT COVID ontology has been developed by the ACT Harmonization Committee. Note: Implementing this ontology is not necessary for this initial submission, but it might be helpful for you to look at the codes it uses as you try to identify your population of COVID-19 positive patients.

Browse the ACT COVID Ontology

The ontology can be quickly browsed at this link (password not required). Click here

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