{description: Search based on whether a patient was part of a multiple birth or not., package_name: hl7.fhir.r4.core, name: birthOrderBoolean, type: token, package_version: 4.0.1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/patient-extensions-Patient-birthOrderBoolean', version: 4.0.1}