Releases of this item contain 2 related derivatives of the SNOMED CT UK Edition to aid the processing of inactive content within systems and data repositories.
The History Substitution Table provides a single table identifying valid substitutions for concepts that are now inactive, along with metadata about that substitution; it is computed using the historical relationships within the main SNOMED CT release but presented as a simpler look-up table.
The Query Table is an extension to a normal SNOMED CT transitive closure table, taking into account the History Substitutions Table and other data. It provides a mechanism to achieve optimal data retrieval, regardless of inactive and active concept status in data or query definitions. The Query Table is recommended as a mechanism for ensuring inactive content is still returned in searches, and is specifically recommended by the Joint GP IT Committee for use in primary care systems.
Release 31.3.0, 27 January 2021.
Released on Wednesday, 27 January 2021
Release 31.1.0, 25 November 2020.
Released on Wednesday, 2 December 2020
Release 31.0.0, 28 October 2020.
Released on Wednesday, 11 November 2020
Release 30.2.0, September 2020.
Released on Wednesday, 7 October 2020
Release 30.0.0, August 2020.
Released on Wednesday, 5 August 2020
Release 29.3.0, June 2020.
Released on Wednesday, 17 June 2020
Release 29.2.0, May 2020.
Released on Wednesday, 13 May 2020
Release 29.1.0, 22 April 2020.
Released on Wednesday, 15 April 2020
Release 29.0.0, April 2020.
Released on Wednesday, 1 April 2020
Release 28.0.0, October 2019.
Released on Tuesday, 1 October 2019
Release 27.0.0, June 2019.
Released on Tuesday, 4 June 2019