Union of https://www.ehealth.fgov.be/standards/fhir/vaccination/StructureDefinition/be-ext-simple-note and https://www.ehealth.fgov.be/standards/fhir/vaccination/StructureDefinition/be-ext-simple-note

This is the set of resources that conform to either of the profiles BeExtSimpleNote (https://www.ehealth.fgov.be/standards/fhir/vaccination/StructureDefinition/be-ext-simple-note) and BeExtSimpleNote (https://www.ehealth.fgov.be/standards/fhir/vaccination/StructureDefinition/be-ext-simple-note). E.g. what you have to deal with if you get resources conforming to one of them

Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..*BeExtSimpleNote
ele-1: All FHIR elements must have a @value or children
ext-1: Must have either extensions or value[x], not both
... url 1..1uriidentifies the meaning of the extension
... value[x] 0..1AnnotationValue of extension
ele-1: All FHIR elements must have a @value or children

doco Documentation for this format