http://hl7.org/fhir/StructureDefinition/location-boundary-geojson|4.0.1

A boundary shape that represents the outside edge of the location (in GeoJSON format) This shape may have holes, and disconnected shapes.
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Extension
typehttp://hl7.org/fhir/StructureDefinition/Extension
Extension.value[x].typehttp://hl7.org/fhir/StructureDefinition/Attachment