the specific value set definition to be used in this binding the local identifiers for or URIs of a set of code system versions to be used in the binding A service that allows the creation, update and deletion of concept domain bindings A service that allows the enumeration, query and filtering of the concept domain bindings known to the system a DirectoryURI that resolves to the set of all concept domain bindings known to the service A service that provides direct read access to bindings that are asserted between concept domains and value sets. the set of version tags known to the service. All services must recognize the tag, CURRENT, the interpretation of which is service specific.