Details
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Change Request
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Resolution: Persuasive
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Medium
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FHIR Core (FHIR)
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R5
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Terminology Infrastructure
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CodeSystem
ValueSet -
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Rob McClure/Ted Klein: 24-0-2
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Enhancement
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Compatible, substantive
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R5
Description
There are situations where the canonical url does not resolve to the current web location that actually exists of the terminology source of truth. This was addressed in value sets by creating the authoritativeSource extension. This problem exists for code systems too, such as the CDCREC code system with a non-resolvable uri identifier, or when the source of truth changes from the what is represented by the code system.url.
To meet this need we need an authoritativeSource extension for code system.
In addition, the publisher should use that url as the link location when the user wants to browse to see the code system content when the extension is populated.