An entry in a value set catalog that describes the purpose, use, etc. of a value set. An entry in a value set catalog that describes the purpose, use, etc. of a value set. a DirectoryURI that references a set of definition (versions) for this value set. If the service profile does not support value set definitions, this attribute should be omitted. If the service supports definitions but none are known for this value set, the parameter should be supplied, but will resolve to an empty directory. a reference to the definition associated with the CURRENT tag, if any a URI that resolves to the resolution of this value set using the CURRENT tag for both the definition and the code system versions the unique name of this value set within the context of the CTS₂ service instance. A ValueSetDefinition read from a service instance. PSM A catalog that summarizes a set of value sets known to the service. A synopsis of a ValueSet along with information about how to access the complete resource. the name and URI of the value set definition that is associated with the CURRENT tag for this value set. the local identifier assigned to the value set within the context of the service An iterable collection of ValueSetCatalogEntries. A ValueSetCatalogEntry as it appears in a directory listing.