description: 'STU3: `Sequence.coordinateSystem` (new:integer)' package_name: hl7.fhir.uv.xver-r3.r5 derivation: constraint name: ExtensionSequence_CoordinateSystem type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-Sequence.coordinateSystem'} index: 0 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Base number of coordinate system (0 for 0-based numbering or coordinates, inclusive start, exclusive end, 1 for 1-based numbering, inclusive start, inclusive end) choices: [valueInteger] index: 2 valueInteger: short: Base number of coordinate system (0 for 0-based numbering or coordinates, inclusive start, exclusive end, 1 for 1-based numbering, inclusive start, inclusive end) type: integer base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 3 package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-Sequence.coordinateSystem base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.1.0 required: [url, value, valueInteger]