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The following data types are used in the release files:

Data Type

SCTID

A SNOMED CT identifier,between 6 and 18 digits long, as described in 5.2. SCTID Representation .

UUID

Universally Unique Identifier,128-bit unsigned Integer

Integer

32-bit signed Integer .

String

UTF-8 text of a specified length.

Boolean

Boolean value, represented as one of two possible Integer values ('1' for true, '0' for false).

Time

For release files,a time format down to day of the year is used, having an ISO8601 basic representation of YYYYMMDD .

For development interchange formats, an ASCII text field in the ISO8601 basic format YYYYMMDDThhmmss Z will be used. The time zone will always be UTC, as indicated by the trailing "Z". (e.g. 20080602T223000Z represents 10:30pm June 2 2008 UTC.)

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