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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R4B
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Biomedical Research & Regulation
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Ingredient
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Jean Duteau / Catherine Hosage Norman: 7-0-0
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Enhancement
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Non-compatible
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R5
Description
If there is a reference strength there has to be a reference substance. That is the whole point of it. But it is not mandatory at the moment. I think the reason was that at one stage it could also have been a reference "specified substance", but that concept is dropped for now.
We had a ballot comment Jira to better document this area (https://jira.hl7.org/browse/FHIR-31819), so could make this change also.
Proposal:
Ingredient.substance.strength.referenceStrength.substance to be 1..1