description: Extension to define the performer of the pretreatment package_name: ch.fhir.ig.ch-ems derivation: constraint name: CHEmsExtPerformer type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://fhir.ch/ig/ch-ems/StructureDefinition/ch-ems-ext-performer'} index: 1 valueCodeableConcept: type: CodeableConcept short: Value of extension binding: {strength: extensible, valueSet: 'http://fhir.ch/ig/ch-ems/ValueSet/IVR-VS-preTreatment'} index: 2 package_version: 1.9.0 extensions: {} class: extension kind: complex-type url: http://fhir.ch/ig/ch-ems/StructureDefinition/ch-ems-ext-performer base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.9.0 required: [valueCodeableConcept]