description: This HRex Reference Profile should be used by Da Vinci IGs where there is a need for the reference to be resolvable via REST (and potentially chained through). package_name: hl7.fhir.us.davinci-hrex derivation: constraint name: HRexReferenceRest type: Reference elements: reference: {index: 0} package_version: 1.1.0-ballot class: complex-type kind: complex-type url: http://hl7.org/fhir/us/davinci-hrex/StructureDefinition/hrex-reference-rest base: http://hl7.org/fhir/StructureDefinition/Reference version: 1.1.0-ballot required: [reference]