Intersection of http://hl7.org/fhir/uv/ips/ValueSet/allergy-reaction-uv-ips and https://ncez.mzcr.cz/terminology/ValueSet/eHDSIReactionAllergy
This is the ValueSet that contains codes in both Allergy Reaction - IPS (http://hl7.org/fhir/uv/ips/ValueSet/allergy-reaction-uv-ips) and eHDSI Reaction Allergy (https://ncez.mzcr.cz/terminology/ValueSet/eHDSIReactionAllergy).