|XML Representation Summary
Content model elements (2):
Included in content model of elements (2):
Known Usage Locations
Describes the concatenation of other variables, based on a category value of this variable that can be used to identify or locate a specific record of this type. Used to identify unique identification string for a record of a specific category type. For example: A summary level indicating a state record may only require a STATE code to identify it in addition to its summary level category value, while a COUNTY would require a specific summary level value plus a STATE code and a COUNTY code.
XML Source (w/o annotations (1); see within schema source)