description: The agency, organization or individual (including self-referral) that referred the client for treatment to the agency providing the services . package_name: ca.on.oh.mha derivation: constraint name: RequesterSourceType type: Extension elements: url: pattern: {type: Uri, value: 'https://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-ext-referral-source-type'} index: 0 value: choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 3} value[x]: elements: coding: binding: {strength: required, valueSet: 'http://ontariohealth.ca/fhir/ValueSet/referral-source-type'} mustSupport: true index: 4 required: [coding] package_version: pds-0.9.0-alpha-1 class: extension kind: complex-type url: https://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-ext-referral-source-type base: http://hl7.org/fhir/StructureDefinition/Extension version: null