Union of https://hl7.fr/ig/fhir/core/StructureDefinition/fr-core-observation-level-of-exertion and https://hl7.fr/ig/fhir/core/StructureDefinition/fr-core-observation-level-of-exertion

This is the set of resources that conform to either of the profiles FR Core Observation Level Of Exertion Extension (https://hl7.fr/ig/fhir/core/StructureDefinition/fr-core-observation-level-of-exertion) and FR Core Observation Level Of Exertion Extension (https://hl7.fr/ig/fhir/core/StructureDefinition/fr-core-observation-level-of-exertion). E.g. what you have to deal with if you get resources conforming to one of them

Structure

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.. Extension 0..*FR Core Observation Level Of Exertion Extension
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..1CodeableConceptValue of extension
ele-1: All FHIR elements must have a @value or children

doco XXXX