http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation|4.0.1

Identifies the desired orientation when rendering a list of choices (typically radio-box or check-box lists).

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	code
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	code