description: An extension to associate a logo (e.g., image or icon) with an Organization, using a reference to a profile Attachment resource. package_name: hl7.fhir.cz.core derivation: constraint name: CZ_OrganizationLogo type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo'} index: 1 value: short: Reference to a Document reference containing the logo image choices: [valueReference] index: 3 valueReference: type: Reference short: Reference to a Document reference containing the logo image choiceOf: value refers: ['https://hl7.cz/fhir/core/StructureDefinition/cz-logo'] index: 4 package_version: 1.0.0 extensions: {} class: extension kind: complex-type url: https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueReference, value]