Retire reason FHIR Extension

This extension is used to describe reason for what record was retired.

retire-reason

{
    "resourceType":"StructureDefinition",
	"id":"retire-reason",
	"url":"https://openmrs.org/fhir/StructureDefinition/retire-reason",
    "name":"retire-reason",
    "kind":"complex-type",
    "abstract":false,
	"status":"draft",
    "contextType":"resource",
    "type":"Extension",
    "baseDefinition":"http://hl7.org/fhir/StructureDefinition/Extension",
    "derivation":"constraint",
    "differential":{
        "element": [
            {
                "id":"Extension.url",
                "path":"Extension.url",
                "fixedUri":"https://openmrs.org/fhir/StructureDefinition/retire-reason"
            },
            {
                "id":"Extension.valueString",
                "path":"Extension.valueString",
                "type": [
                    {
                        "code":"string"
                    }
                ]
            }
        ]
    }
}