Details
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Change Request
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Resolution: Persuasive with Modification
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Medium
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FHIR Core (FHIR)
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R5
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FHIR Infrastructure
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ActivityDefinition
Measure
PlanDefinition -
(many)
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Bryn Rhodes/Yunwei Wang: 16-0-0
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Correction
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Non-compatible
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R5
Description
The CQL May ballot introduced the text/cql.identifier media type specifically to support the typical use of Expression elements in Measure and PlanDefinition to refer to the name of a definition in a library, rather than a general CQL expression:
https://cql.hl7.org/2020May/07-physicalrepresentation.html#media-types-and-namespaces
This new media type should be added to the ExpressionLanguage value set:
http://build.fhir.org/valueset-expression-language.html
However, discussion on applying this change to the validator revealed that the ExpressionLanguage codesystem:
http://build.fhir.org/codesystem-expression-language.html
Should be deprecated, the value set should be constructed by referencing codes from the existing code system of bcp 13 codes.
Refer to the zulip stream for more details:
https://chat.fhir.org/#narrow/stream/179252-IG-creation/topic/Quality.20Measure.20IG.20QA.20Issues