Expression Constraint Language

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This appendix provides a list of example aliases that may be used to specify a particular dialect in an ECL filter constraint. Please refer to the 'Dialect Filter' section on 6.8 Description Filters for more information on how these dialect aliases are used in ECL.

All dialect aliases should follow the ABNF syntax shown below. This format is designed to be compatible with BCP-47 (Internet Best Current Practice Specification), which ensures alignment with a range of other specifications - e.g. HTTP "accept-language" headers, and the HL7 FHIR "designation.language" data element.

dialectAlias = ( language [ "-" script ] [ "-" region ] [ "-" privateuse ] ) / privateuse

language = alpha alpha                              ; ISO 639-1 code (List of codes)

script = alpha alpha alpha alpha                ; ISO 15924 code (List of codes)

region = alpha alpha                                  ; ISO 3166-1 code (List of codes)

privateuse = "x" 1*("-" 1*8(alpha / digit) )   ; the clinical scope or context of use

The table below lists the valid 'dialect' filter values and their equivalent 'dialectId' filter values, for a selection of known language reference sets. To request the addition of a new dialect alias, please use the 'Feedback' button on the bottom of this page. 

dialectdialectId
da-dk554461000005103 |Danish language reference set|
en-au32570271000036106 |Australian English language reference set|
en-ca19491000087109 |Canada English language reference set|
en-gb900000000000508004 |Great Britain English language reference set|
en-ie21000220103 |Irish language reference set|
en-nz271000210107 |New Zealand English language reference set|
en-nz-x-pat281000210109 |New Zealand English patient friendly terms language reference set|
en-us900000000000509007 |United States of America English language reference set|
en-x-gmdn608771002 |GMDN language reference set|
en-x-nhs-clinical999001261000000100 |National Health Service realm language reference set (clinical part)|
en-x-nhs-dmd999000671000001103 |National Health Service dictionary of medicines and devices realm language reference set|
en-x-nhs-pharmacy999000691000001104 |National Health Service realm language reference set (pharmacy part)|

en-gb-x-drug

999000681000001101 |United Kingdom Drug Extension Great Britain English language reference set|
en-gb-x-ext999001251000000103 |United Kingdom Extension Great Britain English language reference set|
es450828004 |Conjunto de referencias de lenguaje castellano para América Latina|
es-uy5641000179103 |Conjunto de referencias de lenguaje castellano para Uruguay|
et-ee71000181105 |Estonian language reference set|
de722130004 |German language reference set|
fr722131000 |French language reference set|
fr-be21000172104 |Belgian French language reference set|
fr-ca20581000087109 |Canada French language reference set|
ja722129009 | Japanese language reference set|
mi291000210106 |Maori language reference set|
nl-be31000172101 |Belgian Dutch language reference set|
nl-nl31000146106 |Netherlands Dutch language reference set|
nb-no61000202103 |Norwegian Bokmål language reference set|
nn-no91000202106 |Norwegian Nynorsk language reference set|
sv-se46011000052107 |Swedish language reference set|
zh722128001 |Chinese language reference set|



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