bcp:13

This CodeSystem defines some codes used from urn:ietf:bcp:13. For more information, see: https://www.rfc-editor.org/info/bcp13 (RFCs 2045, 2046, 2047, 4288, 4289 and 2049)

This code system urn:ietf:bcp:13 defines the following codes:

CodeDisplay
text/htmlHypertext Markup Language
application/pdfPortable Document Format