description: The type agency, organization or individual that referred the client for treatment to the agency providing the services. package_name: ca.on.oh.mha-pds derivation: constraint name: ExtensionReferralSourceType type: Extension elements: url: pattern: {type: Uri, value: 'http://ontariohealth.ca/fhir/StructureDefinition/ca-on-ext-referralSourceType'} index: 0 value: mustSupport: true choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, mustSupport: true, choiceOf: value, index: 3} value[x]: elements: coding: mustSupport: true index: 4 elements: system: {mustSupport: true, index: 5} code: {mustSupport: true, index: 6} display: {mustSupport: true, index: 7} required: [display, system, code] required: [coding] package_version: 0.9.0-alpha-1.9.4 class: extension kind: complex-type url: http://ontariohealth.ca/fhir/StructureDefinition/ca-on-ext-referralSourceType base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [value, valueCodeableConcept]