Metadata Files
These files provide standardized ways of providing users with Metadata regarding the Release Package and the SNOMED CT components contained therein.
"release-package-information.json" file
These files are located in the top-level directory of the SNOMED CT Release packages, and contain various information related to the specific Release package in which they reside.
release-package-information-.json file - Detailed Specification
effectiveTime
String
Specifies the inclusive date at which the package has been versioned
Note : In distribution files the effectiveTime should follow the short ISO date format (YYYYMMDD)
previousPublishedPackage
String
The name of the last Release package to have been published for this specific SNOMED CT Product
licenceStatement
String
The licence statement that applies to this particular version of the Product, and which must be adhered to when using the package.
languageRefsets
String
Details of all language refsets included within the package (eg) { "id": "900000000000508004", "term": "Great Britain English language reference set" }, { "id": "900000000000509007", "term": "United States of America English language reference set" }
packageComposition
String
essentialComponents
String
Any information useful to the users, regarding components that are a mandatory part of each version of the package.
optionalComponents
String
Bespoke fields can be created in this section in order to provide users with any additional information that may be specific about this particular Product, especially in regard to components that might (but don't have to) be included in each version of the package. See below for examples:
MapDirectionality
String
States which direction each map file is mapped in (eg) SNOMED to external product, or external product to SNOMED
SNOMEDMapSource
String
The version of SNOMED CT that the map is based upon (eg) SNOMED CT version 20250701, released July 2025
externalMapSource
String
The version of the external product upon which the map is based (eg) Orphanet version July 2025
dependency
String
The external product version upon which this package is dependent
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