- Created by Chun Li, last modified on May 08, 2023
C-CDAs are everywhere in the United States and HL7 is developing a map to guide transformation from C-CDA to FHIR (and back!). Please join multiple vendors engaged in this important work.
Current estimates are that billions of C-CDA clinical documents are exchanged annually in the United States. To make this data easier to use and integrate with newer FHIR R4 US CORE conformant resources, the Cross Group Project workgroup (https://confluence.hl7.org/display/CGP/Cross-Group+Projects+Home) launched a project (https://confluence.hl7.org/display/CGP/C-CDA+to+and+from+US+Core+Mapping) to develop a mapping between the standards. This also includes the ability to take US CORE conformant FHIR resources and present that information in C-CDA clinical documents.
The work to date has created multiple spreadsheets and informative guidance on this process (bit.ly/ccda2fhirmaps). The project group has also collected mapping samples from multiple vendors from a common input CCD to compare and ultimately, align on best practice recommendation. At this Connectathon, we are looking to continue this effort and generate mapping artifacts to support the a future HL7 ballot for this mapping project.
Test mappings and implementation guide.
Call for participants
Vendors who generate or consume C-CDA/FHIR data and are interested in mapping information between the respective standards.
Have developed mappings for at least one C-CDA entry to the relevant FHIR resource
Have basic knowledge on C-CDA and FHIR IG
Chun Li, Jay Lyle
Track Lead Email(s)
IG build page: http://build.fhir.org/ig/HL7/ccda-on-fhir/index.html
Past Connectathon Track Page: 2023 - 01 C-CDA to FHIR Mapping Track, 2022 - 09 C-CDA to FHIR Mapping
Project Confluence Page: C-CDA to and from US Core Mapping
Existing Mapping Guidance Draft: bit.ly/ccda2fhirmaps
Track Kick off Call
April 24th 10am, 2023
Chun Li is inviting you to a scheduled Zoom meeting.
Topic: Chun Li's Personal Meeting Room
Join Zoom Meeting
Meeting ID: 797 263 3415
Dial by your location
1) Vendors that currently produce C-CDA clinical documents and seeks to produce the same data as US CORE conformant FHIR R4 resources.
2) An organization (or vendor) which receives C-CDA clinical documents and seeks to transform these data to US CORE conformant FHIR resources
3) Vendors that host FHIR servers and are seeking guidance for how to assemble these data into C-CDA 2.1 conformant clinical documents.
We will work with interested vendors in advance to come with some example mappings between the standards to facilitate discussion during the connectathon. Vendors do not need active servers to participate, although technologies that can facilitate real-time mapping are very welcome.
We will use the same inbound CCD example to compare the outbound FHIR resources. The CCD example can be found in here: https://github.com/chunli866/CCDAtoFHIRSamples/tree/main/Input. The vendor's output will be uploaded to the same repo.
We may use multiple tools for the visualization of C-CDA and FHIR data. We may also use previously developed tools to facilitate the visualization of mapping data between relevant standards (e.g. http://ccda.online/).
Priority 1 domains:
- Results (Lab)
- Vital Signs
- Social History
Priority 2 domains:
- Clinical Notes
- Plan of Care / Treatment Plan
- Other ancillary area
2. compare and discuss FHIR to C-CDA mapping (example inbounding FHIR PAMPI resources + bundle: Example Data)
3. Review the comments for the ballot
Collect different vendor's mappings and compare them. Discuss the common and different approaches and align on a consensus mapping recommendation, which will be part of the future ballot.
Having a pool of vendors' mappings from the common CCD construct to ease the comparison. These are hosted in https://github.com/chunli866/CCDAtoFHIRSamples.
We welcome anyone who have developed mappings for at least one C-CDA entry to the relevant FHIR resource in the discussion. The session will focus on mapping C-CDA entries to FHIR resources, and if there is time and interest, we will consider mapping from FHIR to C-CDA.
Create mapping artifacts of recommendations.
- Bring active development servers to perform real-time transformation during the event
- Contribute new samples (either C-CDA or FHIR) to be used in transformations
No test scripts will be used
Security and Privacy Considerations:
No PHI will be used during the event. C-CDA and FHIR both have privacy considerations which may be part of mapping.