description: A FHIR Query that resolves to one or more resources that can be displayed to the user to help provide context for answering a question. package_name: hl7.fhir.uv.sdc derivation: constraint name: Expression for information to guide answers type: Extension elements: url: pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-contextExpression'} index: 0 valueExpression: {type: Expression, index: 1} package_version: 2.5.0 class: extension kind: complex-type url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-contextExpression base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.5.0