description: Date of Surgery (Observation). The PartialDate extension supports partial dates. package_name: hl7.fhir.us.vrdr derivation: constraint name: SurgeryDate type: Observation elements: status: pattern: {type: Code, value: final} index: 0 code: pattern: type: CodeableConcept value: coding: - {code: 80992-1, system: 'http://loinc.org'} index: 1 subject: type: Reference refers: ['http://hl7.org/fhir/us/vrdr/StructureDefinition/vrdr-decedent'] index: 2 effective: choices: [effectiveDateTime] index: 4 effectiveDateTime: {type: dateTime, choiceOf: effective, index: 5} value: choices: [valueDateTime] index: 7 valueDateTime: type: dateTime choiceOf: value index: 8 extensions: partialDate: {url: 'http://hl7.org/fhir/us/vrdr/StructureDefinition/PartialDate', min: 0, max: 1, type: Extension, index: 11} elements: extension: index: 10 slicing: rules: open ordered: false discriminator: - {path: url, type: value} min: null slices: partialDate: match: {url: null} schema: {type: Extension, url: 'http://hl7.org/fhir/us/vrdr/StructureDefinition/PartialDate', index: 11} min: 0 max: 1 package_version: 2.1.0 class: profile kind: resource url: http://hl7.org/fhir/us/vrdr/StructureDefinition/vrdr-surgery-date base: http://hl7.org/fhir/StructureDefinition/Observation version: 2.1.0 required: [subject]