Reduce value set to either findings or substances CHAllergyIntoleranceValueSet (Annatina Foppa, eHealth Suisse)

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ch.fhir.ig.ch-allergyintolerance#1.0.0 /ValueSet-CHAllergyIntoleranceValueSet.html

Currently, the value set used for AllergyIntolerance.code uses codes of the hierarchy (findings) as well as of the (substance) hierarchy as “386961008 Aprotinin”. This solution is not satisfying because it lessens the potential for further usa as with CDS or inclusion in the problem list.
Discussions with representants from SNOMED led to the following conclusion: ". SNOMED CT implementation in FHIR guidance can be found here: http://build.fhir.org/ig/IHTSDO/snomed-ig/ while proposals of SNOMED CT adapted FHIR resources can be found here: http://build.fhir.org/ig/IHTSDO/snomed-ig/profiles.html .
You will note that there are two separated FHIR profiles proposed on this page, based on the general HL7 FHIR AllergyIntolerance resource. One is substance focused, meaning that the record centers for the AllergyIntolerance.code value on the substance the patient reacts to and captures separately the type of reaction in the AllergyIntolerance.type field. One can say this model captures the allergy/intolerance to X in a postcooordinated way. The second profile is finding focused, meaning it captures the allergy/intolerance in the AllergyIntolerance.code field using precoordinated "allergy/intolerance to X" SNOMED CT concepts and makes no use of the AllergyIntolerance.type field."
=>> Substance and finding based content should not be used simultaneously.
I propose a change to one of the hierarchies, whereby I am more in favor of the finding hierarchy.

Annatina Foppa, eHealth Suisse