description: This Extension resource is constrained to support a reference to results of investigations that confirmed the certainty of the diagnosis. Examples might include results of skin prick allergy tests. package_name: gpc.stu3.fhir-assets derivation: constraint name: Extension-CareConnect-GPC-Evidence-1 type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.nhs.uk/STU3/StructureDefinition/Extension-CareConnect-GPC-Evidence-1'} index: 0 valueReference: type: Reference short: A reference to results of investigations that confirmed the certainty of the diagnosis refers: ['http://hl7.org/fhir/StructureDefinition/DiagnosticReport'] index: 1 slicing: slices: valueReference: match: {} schema: type: Reference short: A reference to results of investigations that confirmed the certainty of the diagnosis refers: ['http://hl7.org/fhir/StructureDefinition/DiagnosticReport'] index: 1 package_version: 1.1.2 class: extension kind: complex-type url: https://fhir.nhs.uk/STU3/StructureDefinition/Extension-CareConnect-GPC-Evidence-1 base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0