http://hl7.org/fhir/StructureDefinition/structuredefinition-template-status|5.2.0

Status code taken from [HL7 template specification](http://www.hl7.org/implement/standards/product_brief.cfm?product_id=377) - allows for alignment with the template DSTU, and has more authoring status codes.
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Extension
typehttp://hl7.org/fhir/StructureDefinition/Extension
Extension.value[x].typehttp://hl7.org/fhir/StructureDefinition/code
Extension.value[x].binding.valueSethttp://hl7.org/fhir/ValueSet/template-status-code