description: Extension to reference the biller in the case of a professional service or poduct provided. package_name: ch.fhir.ig.ch-core derivation: constraint name: Biller type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-biller'} type: uri index: 1 value: choices: [valueReference] index: 3 valueReference: type: Reference choiceOf: value refers: ['http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-organization', 'http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-practitioner', 'http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-practitionerrole'] index: 4 package_version: 6.0.0-ballot extensions: {} class: extension kind: complex-type url: http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-biller base: http://hl7.org/fhir/StructureDefinition/Extension version: 6.0.0-ballot required: [value, valueReference]