description: The document reference profile used in US Core. package_name: hl7.fhir.us.core derivation: constraint name: USCoreDocumentReferenceProfile type: DocumentReference elements: category: binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/us/core/ValueSet/us-core-documentreference-category'} isModifier: false mustSupport: true array: true min: 1 index: 3 date: {isModifier: false, mustSupport: true, index: 5} content: isModifier: false mustSupport: true index: 8 elements: attachment: constraint: us-core-6: {human: DocumentReference.content.attachment.url or DocumentReference.content.attachment.data or both SHALL be present., severity: error, expression: url.exists() or data.exists()} isModifier: false mustSupport: true index: 9 elements: contentType: {isModifier: false, mustSupport: true, index: 10} data: {isModifier: false, mustSupport: true, index: 11} url: {isModifier: false, mustSupport: true, index: 12} required: [contentType] format: binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/formatcodes'} isModifier: false mustSupport: true index: 13 required: [attachment] type: binding: {strength: required, valueSet: 'http://hl7.org/fhir/us/core/ValueSet/us-core-documentreference-type'} isModifier: false mustSupport: true index: 2 author: type: Reference isModifier: false mustSupport: true refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitionerrole'] array: true index: 6 custodian: type: Reference isModifier: false mustSupport: true refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization'] index: 7 status: binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/document-reference-status'} isModifier: false mustSupport: true index: 1 identifier: {isModifier: false, mustSupport: true, index: 0} context: isModifier: false mustSupport: true index: 14 elements: encounter: type: Reference isModifier: false mustSupport: true refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-encounter'] index: 15 period: {isModifier: false, mustSupport: true, index: 16} subject: type: Reference isModifier: false mustSupport: true refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient'] index: 4 package_version: 2.1.0 class: profile kind: resource url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-documentreference base: http://hl7.org/fhir/StructureDefinition/DocumentReference version: 3.0.0 required: [status, subject, content, type, category]