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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 .

The table below lists the valid 'dialect' filter values and their equivalent 'dialectId' filter values, for a selection of known language reference sets. The dialect aliases shown below use the following format (defined using ABNF):

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 ] ) / privateusedialectAlias = language [ "-" realm [ "-" useCase ] ]

language = alpha alpha                              ; conforms to ISO 639-1 2 character language codescode (List of codes)

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

region = alpha realm = alpha * alpha                                  ; if realm is a country then conforms to ISO 3166-1 2 character country codescode (List of codes)

privateuse = "x" 1*("-" 1*8(alpha / digit) useCase = alpha *(alpha / integerValue )   ; 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.