description: A CodeableConcept indicating the pharmacy network type the formulary drug is available through the associated plan. This pharmacy network type is specific to the FormularyDrug and indicates which of the pharmacy network type from the plan applies to the particular formulary drug. package_name: hl7.fhir.us.davinci-drug-formulary derivation: constraint name: PharmacyType type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-PharmacyType-extension'} index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: 1.2.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-PharmacyType-extension base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.2.0 required: [value, valueCodeableConcept]