description: Further conditions, problems, diagnoses, procedures or events or the substance that preceded this Condition. package_name: rs/hl7.fhir.core derivation: constraint name: Precedent for this Condition type: Extension elements: extension: index: 0 slicing: slices: extension: match: {} schema: {index: 0} max: 0 url: type: uri pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/condition-occurredFollowing'} index: 1 value: choices: [valueCodeableConcept, valueReference, valueReference, valueReference, valueReference, valueReference] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/Condition'] index: 5 package_version: 1.8.0 extensions: extension: {url: null, max: 0, index: 0} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/condition-occurredFollowing base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [value, valueCodeableConcept, valueReference]