WHO Digital Documentation of COVID-19 Certificates (DDCC)
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This WHO Digital Documentation of COVID-19 Certificates (DDCC) Implementation Guide details how to use Health Level 7 (HL7) Fast Healthcare Interoperability Resources (FHIR) for consistent digital representation of COVID-19 certificates and interoperability.
- This version of the implementation guide is based on the current content at https://github.com/WorldHealthOrganization/ddcc
- This implementation guide and set of artifacts are still undergoing development.
- Content is for demonstration purposes only.
This implementation guide contains a standards-compliant specifications for the DDCC: Vaccination Status and Test Result technical specifications and guidance documents. It explicitly encodes computer-interoperable logic, including data models, terminologies, and logic expressions, in a computable language to support implementation of vaccination and test result use cases by Member States.
To facilitate implementation of effective and interoperable digital solutions:
The DDCC documents contain overviews of high-level use cases for digital COVID-19 certificates, including:
Supporting guidance, recommendations, resources, and standards are included in the References and Dependencies.
This implementation guide is broken into the following levels of knowledge representation:
The specification herewith documented is a demo working specification and may not be used for any implementation purposes. This draft is provided without warranty of completeness or consistency and the official publication supersedes this draft. No liability can be inferred from the use or misuse of this specification or its consequences.