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The Official Blog of Health Level Seven® International


Release of the HL7 C-CDA® R2.1 Companion Guide

[fa icon="calendar"] Mar 9, 2017 2:17:57 PM / by Health Level Seven

HL7 C-CDA Companion Guide







Introducing the HL7 Companion Guide to Consolidated Clinical Document Architecture (C-CDA®) 2.1

On March 3, 2017, Health Level Seven International and the Duteau Design Inc. team of Jean Duteau, Joginder Madra, Helen Stevens, and Lisa Nelson published the Companion Guide to Consolidated Clinical Document Architecture (C-CDA) 2.1. This companion guide is a supplement to HL7's  CDA R2 Implementation Guide (IG): C-CDA Templates for Clinical Notes STU Release 2.1.

What is the C-CDA Companion Guide?

The new C-CDA Companion Guide was developed and published in order to:

How was the C-CDA Companion Guide developed? 

HL7 engaged with the CDA community at our working group meetings and hosted in-person C-CDA Implementation-A-Thons to get input on how to improve implementations. Stakeholders from a variety of settings provided input, including vendors of all sizes, clinicians, ONC staff and members of the Structured Documents Work Group.  

Read more about the purpose of the HL7 C-CDA Implemenation-A-Thons in a recent blog post by George Cole, Principal Scientist, Community Solutions Group at Allscripts. He is an At-Large Board Member of IHE International, and an active member of the HL7 Structured Documents Work Group and the HL7 CDA Examples Taskforce.

Learn More

The Companion Guide is available free of charge at:


Topics: CDA, HL7, HL7 community, health IT, C-CDA

Health Level Seven

Written by Health Level Seven

Health Level Seven® International (HL7) is an ANSI-accredited, not-for-profit standards developing organization with the mission of empowering global health interoperability. With affiliates in over 30 countries, HL7’s global membership envisions a world in which everyone can securely access and use the right data when and where they need it. Widely implemented by vendor and healthcare systems, and required by governing bodies around the world, HL7 standards deliver solutions for health information technology, including HL7® Fast Healthcare Interoperability Resources (FHIR®), Version 2 (V2) and Clinical Document Architecture (CDA®).

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