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Gloss
t UTF-8

 is an efficient encoding of Unicode character -

Specref
RefType (data type) t String

that recognizes the fact that the majority of text-based communications are in ASCII. It therefore optimizes the encoding of these characters.

Unicode is preferred to ASCII because it permits the inclusion of accents, scientific symbols and characters used in

Gloss
t languages

other than English. The

Gloss
t UTF-8

 format is a standard encoding that provides the most efficient means of encoding 16-bit Unicode characters in cases where the majority of characters are in the ASCII range. Both 

Gloss
t UTF-8

and the alternative

Gloss
t UTF-16

 encoding are supported by all widely used operating systems and major applications (and has been for more than 15 years).

Gloss
t SNOMED CT

uses the

Gloss
t UTF-8

representation 

Footnote Macro
Note that SNOMED CT does not use, or require use of, the Byte Order Mark (BOM) specified by the Unicode standard because all SNOMED CT release files use UTF-8.

 of characters in

Gloss
t terms

and other text fields.

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