TX: CodeSystem x-unii <?xml version="1.0" encoding="UTF-8"?> <CodeSystem xmlns="http://hl7.org/fhir"> <id value="x-unii"/> <url value="http://fdasis.nlm.nih.gov"/> <version value="2024-06-22"/> <name value="UNII Codes"/> <status value="active"/> <description value="This is a place holder for the code system which is fully supported through internal means (not by this code system)"/> <content value="not-present"/> </CodeSystem>