description: An extension to express a practitioner’s spoken proficiency with the language indicated in practitioner.communication. package_name: hl7.fhir.us.davinci derivation: constraint name: CommunicationProficiency type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-pdex-plan-net/StructureDefinition/communication-proficiency'} index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: pdex-plan-net-1.0.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/davinci-pdex-plan-net/StructureDefinition/communication-proficiency base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [value, valueCodeableConcept]