description: This extension is used to indicate the scheduling entity that submits the GFE to provide a collection of services to a payer for the creation of an Advanced EOB. All submitters (Practitioners and Organizations) must have an ETIN. package_name: hl7.fhir.us.davinci-pct.r4b derivation: constraint name: GFESubmitter type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-pct/StructureDefinition/gfeSubmitter'} index: 1 value: short: The scheduling entity submitting the GFE choices: [valueReference] index: 3 valueReference: type: Reference short: The scheduling entity submitting the GFE choiceOf: value refers: ['http://hl7.org/fhir/us/davinci-pct/StructureDefinition/davinci-pct-organization', 'http://hl7.org/fhir/us/davinci-pct/StructureDefinition/davinci-pct-practitioner'] index: 4 package_version: 1.0.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/davinci-pct/StructureDefinition/gfeSubmitter base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueReference, value]