{

"resourceType": "SearchParameter",
"id": "us-core-Patient-ethnicity",
"url": "http://hl7.org/fhir/SearchParameter/us-core-Patient-ethnicity",
"name": "ethnicity",
"code": "ethnicity",
"base": "Patient",
"type": "token",
"description": "Returns patients with an ethnicity extension matching the specified code.",
"xpath": "f:Patient/f:extension[@url='http://hl7.org/fhir/StructureDefinition/us-core-ethnicity']",
"xpathUsage": "normal"

}