{ "description": "Returns patients with an ethnicity extension matching the specified code.", "_filename": "SearchParameter-us-core-ethnicity.json", "package_name": "hl7.fhir.us.core", "date": "2016-12-22", "expression": "Patient.extension.where(url = 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity').extension.value.code", "publisher": "US Realm Steering Committee", "name": "USCoreEthnicity", "xpath": "f:Patient/f:extension[@url='http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity']/f:extension/f:valueCoding/f:code/@value", "xpathUsage": "normal", "type": "token", "experimental": null, "resourceType": "SearchParameter", "title": null, "package_version": "2.0.0", "status": "draft", "id": "dcb2798e-ac8a-44e3-8020-ea6833aed949", "kind": null, "url": "http://hl7.org/fhir/us/core/SearchParameter/us-core-ethnicity", "code": "ethnicity", "base": [ "Patient" ], "version": null, "contact": [ { "telecom": [ { "value": "http://www.healthit.gov/", "system": "other" } ] } ] }