description: If 'true', means that 'conformance' should behave as though it also had a code of 'SHALL NOT' (as introduced in FHIR R6). package_name: hl7.fhir.uv.tools.r5 derivation: constraint name: RequirementsStatementShallNot type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/requirements-statementshallnot'} index: 1 value: choices: [valueBoolean] index: 3 valueBoolean: {type: boolean, choiceOf: value, index: 4} package_version: 1.0.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/tools/StructureDefinition/requirements-statementshallnot base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [value, valueBoolean]