{description: 'Code system of a subset of the media subtypes of binary data that are encoded in an ascii structure or stream.  Used in Version 2 messaging  ED and RP datatypes, but only in standard 2.5.1 and earlier; after that, it was recommended that the IANA media types be used instead of this short list of HL7-defined codes.   More information on the standard media types and subtypes may be found at http://www.iana.org/assignments/media-types/media-types.xhtml.', package_name: rs/hl7.terminology.r4, name: SubtypeOfReferencedData, type: null, package_version: 3.0.0, class: unknown, kind: null, url: 'http://terminology.hl7.org/CodeSystem/v2-0291', version: 2.4.0}