CP-1567 Update language code RFC Status Letter Ballot Date of Last Update 2016/05/25 Person Assigned David Clunie Submitter Name David Clunie Submission Date 2015/12/31 Correction Number CP-1567 Log Summary: Update language code RFC Name of Standard PS3.16 Rationale for Correction: The IETF Tags for Identifying Languages RFC 4646 has been superceded by RFC 5646. Also update normative references to include all referenced language and country code standard families and parts. Correction Wording: <section> <title/> <informaltable rules="all" frame="box"> <tr> <td><para><emphasis role="italic">Amend DICOM PS3.16 as follows:</emphasis></para></td> </tr> </informaltable> </section> <section label="2" status="1" xml:id="chapter_2"> <title>Normative References <bibliodiv label="2.1" status="2" xml:id="sect_2.1"> <title>General RFC 1766 IETF March 1995 <emphasis role="bold"><emphasis role="underline">Tags for the Identification of Languages</emphasis></emphasis> RFC 3066 IETF January 2001 Tags for the Identification of Languages RFC 4646 IETF September 2006 <emphasis role="bold"><emphasis role="underline">Tags for Identifying Languages</emphasis></emphasis> RFC 4647 IETF September 2006 <emphasis role="bold"><emphasis role="underline">Matching of Language Tags</emphasis></emphasis> RFC 5646 IETF September 2009 <emphasis role="bold"><emphasis role="underline">Tags for Identifying Languages</emphasis></emphasis> ISO 639 ISO Codes for the representation of names of languages<emphasis role="bold"><emphasis role="strikethrough">, International Organization for Standardization</emphasis></emphasis> ISO 639-1 ISO 2002 <emphasis role="bold"><emphasis role="underline">Codes for the representation of names of languages — Part 1: Alpha-2 code</emphasis></emphasis> ISO 639-2 ISO 1998 <emphasis role="bold"><emphasis role="underline">Codes for the representation of names of languages — Part 2: Alpha-3 code</emphasis></emphasis> ISO 639-3 ISO 2007 <emphasis role="bold"><emphasis role="underline">Codes for the representation of names of languages — Part 3: Alpha-3 code for comprehensive coverage of languages</emphasis></emphasis> ISO 3166 ISO Codes for the representation of names of countries<emphasis role="bold"><emphasis role="strikethrough">, International Organization for Standardization</emphasis></emphasis> ISO 3166-1 ISO <emphasis role="bold"><emphasis role="underline">Codes for the representation of names of countries — Part 1: Country codes</emphasis></emphasis> ISO 15924 ISO 2004 <emphasis role="bold"><emphasis role="underline">Codes for the representation of names of scripts</emphasis></emphasis>
Coding Schemes
Coding Schemes
Coding Scheme Designator Coding Scheme UID Description
IETF4646 , Tags for Identifying Languages, The Internet Society (2005) has been superceded by .
ISO639_1 2.16.840.1.113883.6.99 Two-letter language codes HL7 uses "ISO639-1" for the symbolic name, with a hyphen rather than an underscore
ISO639_2 2.16.840.1.113883.6.100 Three-letter language codes HL7 uses "ISO639-2" for the symbolic name, with a hyphen rather than an underscore
ISO3166_1 2.16.1 alpha-2 Country Codes HL7 uses "ISO3166-1" for the symbolic name, with a hyphen rather than an underscore
RFC3066 2.16.840.1.113883.6.121 , Tags for the Identification of Languages, Internet Engineering Task Force HL7 uses "IETF3066" for the symbolic name. has been superseded by .
RFC5646 2.16.840.1.113883.6.316 , Tags for Identifying Languages, The Internet Society (2009) The HL7 OID Registry specifies "rfc5646", not "ietf5646", as the Desired Symbolic Name (inconsistent with the pattern used for ). constitutes one part of IETF Best Current Practice BCP 47 Tags for Identifying Languages, which also includes Matching of Language Tags; is not relevant in this context.
Languages Context Group ID 5000 comprises the language tag coding scheme of RFC 46465646. The Coding Scheme Designator (0008,0102) shall be IETF4646RFC5646. The RFC 46465646 coding scheme is constructed from a primary subtag component encoded using the shortest language codes of , plus codes for extensions for languages not represented in . The code optionally includes additional subtag components, for scripts encoded using the four letter codes of , and for regions encoded using the two letter country codes of . RFC 46465646 may be obtained at . RFC 46465646 obsoletes , and , but is forward compatible with those specifications. In previous editions of the Standard, codes were used with a Coding Scheme Designator of IETF4646. is a superset of , which formalizes support for . codes may be obtained at . The two letter country codes of may be obtained at IANA language tag registrations may be obtained at In previous editions of the Standard, this Context Group formerly included the three letter language codes of /B, using Coding Scheme Designator ISO639_2, or the language codes of , using Coding Scheme Designator RFC3066, and several IANA-registered language code extensions, using Coding Scheme Designator IANARFC1766. In previous editions of the Standard, this Context Group provided only language identifiers, with national or regional variant identified in a separate attribute or Content Item.