NHS Data Migration

Important Notice - Information on the withdrawal of Read v2 and CTV3 can be found here

This release pack contains products intended to support the GP Summary Care Record, Systems of Choice and Data Migration programmes. The contents comprises of 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. The pack also includes 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.

Legally restricted patient confidential reference data

Important Notice - NHS Digital is currently undertaking a review of clinical codes that are defined as sensitive (legally restricted) to ensure that its use of provider data is compliant with the Human Fertilisation and Embryology Act 1990 (as amended by the Human Fertilisation and Embryology Act 2008) and the Gender Recognition Act 2004 (as amended by The Gender Recognition (Disclosure of Information) (England, Wales and Northern Ireland) Order 2005).

As part of this work, NHS Digital are seeking your feedback on a proposed list of legally unshareable clinical codes. The codes that have been identified will continue to be used for secondary purposes, but all related information that could potentially identify an individual would be removed where the codes are used for any other reason apart from direct care.

Your feedback will be used to finalise this list of codes, which will be then available for use across the health care system and within national data sets.

Closing date: 19 January 2018

Find out more and take part

Part of the Legally Restricted patient confidential data change standard ISB 1572 Sensitive Data.

Includes the updated clinical code lists for In Vitro Fertilisation (IVF) and Sexually Transmitted Diseases (STD) across the following terminologies and classifications:

• SNOMED CT
• 5-byte Read Codes Version 2
• Clinical Terms Version 3
• ICD-10
• OPCS 4

Status: Technology Preview

PBCL Read Code to SNOMED Code Translation Table

A set of map tables translating the Read codes in the PBCL EDIFACT laboratory report message to SNOMED codes to support transmission, reception, storage and retrieval of primary care pathology results.

Status: Supported

QOF Business Rules

This pack contains a sample of the QOF business rules in SNOMED CT along with the associated documentation. These are provided for technical preview only.

SNOMED Antecedent Versions Data Migration

Mapping tables and guidance to enable historical data previously captured using an antecedent legacy version of SNOMED II,3.x International or SNOMED RT to be migrated to SNOMED CT. Expected use cases include but are not limited to histopathology laboratories and their Laboratory Information Management Systems and suppliers, and secondary users of histopathology data including Cancer Registries.

Status: Technology Preview

SNOMED CT UK Query Table and History Substitution Table

This pack contains two related derivatives of the UK Edition of SNOMED CT 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 some 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.

Status: Supported