http://hl7.org/fhir/StructureDefinition/elementdefinition-graphConstraint|5.2.0
Will cause a GraphDefinition to be executed and the referred-to instance be considered \"valid\" for that GraphDefinition if the instance is the start of a result of executing that GraphDefinition.
description: Will cause a GraphDefinition to be executed and the referred-to instance be considered \"valid\" for that GraphDefinition if the instance is the start of a result of executing that GraphDefinition. derivation: constraint name: GraphConstraint type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/elementdefinition-graphConstraint'} index: 1 value: choices: [] index: 3 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/elementdefinition-graphConstraint base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.2.0 required: [value]