description: This profile represents external resources such as a text guidance, link to access forms for additional reporting needs, additional testing and/or laboratory testing needs, treatment and/or prevention resources, Public Health Agency contact information and general additional resources. package_name: hl7.fhir.us.ecr derivation: constraint name: RRDocumentReference type: DocumentReference elements: extension: index: 0 slicing: rules: open discriminator: - {path: url, type: value} min: 1 slices: priority: match: {url: null} schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/us/ecr/StructureDefinition/rr-priority-extension', index: 1} min: 1 category: short: External Resource Type binding: {strength: extensible, valueSet: 'http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.113883.10.20.15.2.5.4'} mustSupport: true array: true min: 1 index: 2 subject: type: Reference mustSupport: true refers: ['http://hl7.org/fhir/us/ecr/StructureDefinition/us-ph-patient'] index: 3 description: {short: External resource description, mustSupport: true, index: 4} package_version: 2.1.2 extensions: priority: {url: 'http://hl7.org/fhir/us/ecr/StructureDefinition/rr-priority-extension', min: 1, type: Extension, mustSupport: true, index: 1} class: profile kind: resource url: http://hl7.org/fhir/us/ecr/StructureDefinition/rr-documentreference base: http://hl7.org/fhir/us/core/StructureDefinition/us-core-documentreference version: 2.1.2 required: [extension, subject, category, description]