http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1

A fixed quantity (no comparator)

element_id	types
Quantity
Quantity.comparator
Quantity
Quantity.id	http://hl7.org/fhirpath/System.String
Quantity.extension	Extension
Quantity.value	decimal
Quantity.comparator	code
Quantity.unit	string
Quantity.system	uri
Quantity.code	code