description: A code classifying the person's sex assigned at birth. Replicates the birthsex extension in US-Core-R4 for interoperability. package_name: hl7.fhir.ca.baseline derivation: constraint name: ExtensionBirthSex type: Extension elements: url: pattern: {type: Uri, value: 'http://hl7.org/fhir/ca/baseline/StructureDefinition/ext-patientbirthsex'} mustSupport: true index: 0 valueCoding: binding: {strength: example, valueSet: 'http://hl7.org/fhir/ca/baseline/ValueSet/birthsex'} mustSupport: true index: 1 elements: system: {index: 2} code: {index: 3} display: {short: Optional description of the sex at birth code, index: 4} required: [system, code] package_version: 1.1.6-pre class: extension kind: complex-type url: http://hl7.org/fhir/ca/baseline/StructureDefinition/ext-patientbirthsex base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.2.0 required: [valueCoding]