NHS Data Migration

Releases of this item contain products intended to support the GP Summary Care Record, Systems of Choice and Data Migration programmes. Specifically:

many:one "forward" crossmaps from the England and Scotland releases of READ2 to CTV3, from READ2 to SNOMED CT, and from CTV3 to SNOMED CT
many:one "backward" crossmaps from CTV3 to READ 2
tables assigning NHS Care Record Elements to all READ2, CTV3 and SNOMED CT codes - these mapping tables are distributed in a non-standard file format, together with supporting documentation

Releases also include experimental SNOMED CT Navigational Subsets by which simulacra of the READ2 and CTV3 taxonomies may be recreated as views on the full SNOMED CT content.

Visit the Retirement of Read Version 2 and Clinical Terms Version 3 page for more information.

Following consultation, the final release of the Read v2 to SNOMED CT mapping tables was April 2020. Releases of this item are now unmaintained static data.

Unscheduled releases may occur until April 2023, but only in order to resolve critical clinical safety issues.

Status: Deprecated

Releases of this item

DATAMIGRATION_29.0.0_20200401000001

NHS Data Migration release for April 2020.

Released on Wednesday, 1 April 2020

DATAMIGRATION_28.0.0_20191001000001

NHS Data Migration release for October 2019.

Released on Tuesday, 1 October 2019

XDATAMIGRATION_27.0.0_20190601000001

NHS Data Migration release for June 2019.

Released on Wednesday, 12 June 2019

DATAMIGRATION_27.0.0_20190601000001

NHS Data Migration release for June 2019.

Released on Tuesday, 4 June 2019

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