This code system urn:iso:std:iso:3166 defines many codes, but they are not represented here

 <status value="active"/> <experimental value="false"/> <date value="2022-08-23T00:00:00-00:00"/> <publisher value="International Organization for Standardization (ISO)"/> <contact> <name value="International Organization for Standardization (ISO)"/> <telecom> <system value="url"/> <value value="https://www.iso.org/"/> </telecom> </contact> <description value="ISO 3166-1 establishes codes that represent the current names of countries, dependencies, and other areas of particular geopolitical interest, on the basis of country names obtained from the United Nations."/> <copyright value="ISO Maintains the copyright on the country codes, and controls it's use carefully. For futher details see the ISO 3166 web page: https://www.iso.org/iso-3166-country-codes.html"/> <caseSensitive value="true"/> <content value="not-present"/> </CodeSystem>