dm+d XML transformation tool

Use this tool to read the dm+d weekly-released XML files (under item ‘NHSBSA dm+d’ in this category) and convert the content to both Microsoft Excel and comma-separated value (CSV) files.

The tool:

• runs on Microsoft Windows (fully tested on Windows 7)
• runs from the C: drive - you might need local administrator permissions
• requires Microsoft Excel (fully tested with Excel 2010)
• uses a Microsoft Excel macro-enabled spreadsheet

No dm+d releases are included with the tool and must be downloaded separately.

Legally restricted patient confidential reference data

The technical preview code list was originally drafted to support a refresh of the ISB 1572 Sensitive Data standards and for no other purpose.

The legal basis for patient identifiable data and sensitive information changed with the introduction of the Health and Social Care Act 2012. However, the legal and policy context and interpretation for sensitive and/or legally restricted data has not been fully established due to the changes in legislation since the original standard was released.

As a result, this supporting code list has remained static since April 2016. NHS Digital will update the codes once an updated policy and instruction is provided by our commissioners.

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 Read Version 2 to Clinical Terms Version 3, from Read Version 2 to SNOMED CT, and from Clinical Terms Version 3 to SNOMED CT
• many:one ‘backward’ crossmaps from Clinical Terms Version 3 to Read Version 2
• tables assigning NHS Care Record Elements to all Read Version 2, Clinical Terms Version 3 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 Read Version 2 and Clinical Terms Version 3 taxonomies may be recreated as views on the full SNOMED CT content.

Read important information on the retirement of Read Version 2 and Clinical Terms Version 3.

Following consultation, the final release of the Read Version 2 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

NHS National Laboratory Medicine Catalogue

The National Laboratory Medicine Catalogue is a catalogue of SNOMED CT coded laboratory medicine test requests intended for use by Pathology services and their users across the NHS, and is still under development under the ownership of the Royal College of Pathologists.

The status of the National Laboratory Medicine Catalogue is ‘Technology Preview’, as defined in the IReS Terminology Product Development Lifecycle (external PDF). This means that trial implementation is encouraged to evaluate utility and safety, and to identify possible design improvements. Full live deployment is not recommended and will be at the user's own risk, where such risk is permitted by other governance processes.

The catalogue has not been updated since April 2014. Implementations may have to change if the product design changes in light of experience. If the product is found to be only minimally used or useful, or unsafe, then NHS Digital as the UK National Release Centre for SNOMED CT is under no obligation to continue releasing this product.

Status: Technology Preview

NHS Read Browser

NHS UK Read Codes release data (all versions) in browsable form. This includes English and Scottish variations of the Tri set browser. One directional cross maps from all versions of Read to ICD-10 and OPCS-4 can be viewed on an individual basis in the browser.

The last scheduled release of Read Version 2 and Clinical Terms Version 3 was April 2018. In line with the retirement of Read Version 2 and Clinical Terms Version 3, we no longer support or maintain this product.

Status: Deprecated

NHS UK Read Codes Clinical Terms Version 3

The final release of this item was on 19 March 2018. Basic maintenance support will be provided until April 2020.

Read important information on the retirement of Read Version 2 and Clinical Terms Version 3.

Status: Deprecated

NHS UK Read Codes Clinical Terms Version 3, Cross Maps

The final release of this item was on 19 March 2018. Basic maintenance support will be provided until April 2020.

Read important information on the retirement of Read Version 2 and Clinical Terms Version 3.

Status: Deprecated

NHS UK Read Codes Version 2

The final release of this item was on 1 April 2016.

Read important information on the retirement of Read Version 2 and Clinical Terms Version 3.

Status: Deprecated

NHS UK Read Pathology Bounded Code List

The Pathology Bounded Code List (PBCL) was developed to provide a defined or bounded subset of Read codes for use in laboratory to GP messaging. Use of the PBCL ensures that there is common understanding by both sending and receiving clinicians of the laboratory investigations and results.

The PBCL continues to be supported following the final release of Read CTV3 in April 2018 but will only be updated on an ad hoc basis where there is an identified national need. Subscribers will be notified in advance of any changes.

Read important information on the retirement of Read Version 2 and Clinical Terms Version 3.

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 CT codes to support transmission, reception, storage and retrieval of primary care pathology results.

Status: Supported

Primary Care Domain reference sets

Primary Care Domain reference sets are clusters of codes used within the business rules authored and maintained by NHS England's primary care domain.

Learn more on the Primary Care Domain Reference Set Portal.

Upcoming changes to Primary Care Domain reference sets

From the first Primary Care Domain reference sets release that aligns with the June 2023 SNOMED CT UK Clinical releases (expected to be published by August 2023), all stated relationships will be inactivated and Owl Expressions will be published, to bring releases of this item in line with the SNOMED CT UK Clinical releases.

From the first Primary Care Domain reference sets release that aligns with the August 2023 SNOMED CT UK Clinical releases (expected to be published by October 2023), releases of this item will be published in 2 formats:

1. The existing production format that most closely aligns with the SNOMED CT UK Clinical legacy format.
2. A beta format which more closely aligns with the current SNOMED CT UK Clinical production release format.

From 2024 the beta format will become the only published production format and the previous production format will be discontinued.

We recommend transitioning to consuming the beta format as soon as possible.

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 human-readable subset - In Development

Releases of this item contain subsets related to the domain specified in each file. These are not yet available in the main release, but may be made available once utility and appropriateness for purpose is demonstrable.

Some subsets will be listed in more than one category - this is intentional, and the subset content will be the same. We suggest you register for domains of interest, rather than selecting all, or be aware that some duplication will occur.

We recommend subscribing to this item to receive updates of the latest content before formal release.

We welcome feedback on any of the products, but especially early in the lifecycle of the product it is useful to have feedback on how products are intended to be used or any definition or quality concerns users (or potential users) have. Where subsets relate directly to your domain of practice, there may be opportunities to be more actively involved in development or ownership of the subset. This particularly applies to domain experts within professional bodies - contact the subset service via information.standards@nhs.net.

SNOMED CT human-readable subset - UK Clinical Extension

SNOMED CT human-readable subset - UK Drug Extension

SNOMED CT UK Clinical Edition Cross-map Historical Files, RF2: Full

Retired cross-map RF2 files, Full release type only.

There is a release per retired cross-map containing the extended map reference set release file and associated documentation.

The data contained within the releases are for reporting or data warehousing - the maps should not be used for live data processing. Active cross-maps can be found in the main Clinical Edition RF2 releases.

Status: Supported Product

SNOMED CT UK Clinical Edition, RF2: Delta

SNOMED CT UK Clinical Edition in Release Format 2 (RF2), release type Delta only.

Releases of the UK Clinical Extension and the International release. Each release also includes refsets, cross-maps and added-value files.

Release type Delta provides only the changes between this and the last release, including any new components.

Find SNOMED CT UK Clinical Extension release documentation and SNOMED CT UK Edition product information on Delen.

Status: Supported Product

The format of these releases has changed

Read more on the SNOMED CT Releases: Important Notices & Known Issues page on Delen.

SNOMED CT UK Clinical Edition, RF2: Full, Snapshot & Delta

SNOMED CT UK Clinical Edition in Release Format 2 (RF2) - all release types.

Releases of the UK Clinical Extension and the International release. Each release also includes refsets, cross-maps and added-value files.

All RF2 release types – Full, Snapshot and Delta – are included.

Find SNOMED CT UK Clinical Extension release documentation and SNOMED CT UK Edition product information on Delen.

Status: Supported Product

The format of these releases has changed

Read more on the SNOMED CT Releases: Important Notices & Known Issues page on Delen.

SNOMED CT UK Data Migration Workbench

Releases of this item contain the SNOMED CT UK Data Migration Workbench application, which includes its database files pre-loaded with the latest versions of SNOMED CT, CTV3, READ, OPCS-4, ICD-10 and the crossmaps between them.

Releases also include an installation guide, a user guide and a "Read Me.txt" file. Read the "Read Me.txt" file before installing the application.

Status: In Development

SNOMED CT UK Drug Extension, RF2: Delta

SNOMED CT UK Drug Extension in Release Format 2 (RF2), release type Delta only.

RF2 release type Delta, drug-only refsets and added-value files are included in each release.

Find SNOMED CT UK Drug Extension release documentation and SNOMED CT UK Edition product information on Delen.

These releases do not include the UK Clinical Extension or International release.

Status: Supported Product

The format of these releases has changed

Read more on the SNOMED CT Releases: Important Notices & Known Issues page on Delen.

SNOMED CT UK Drug Extension, RF2: Full, Snapshot & Delta

SNOMED CT UK Drug Extension in Release Format 2 (RF2), all release types.

All RF2 release types (Full, Snapshot and Delta), drug-only refsets and added-value files are included in each release.

Find SNOMED CT UK Drug Extension release documentation and SNOMED CT UK Edition product information on Delen.

These releases do not include the UK Clinical Extension or International release.

Status: Supported Product

The format of these releases has changed

Read more on the SNOMED CT Releases: Important Notices & Known Issues page on Delen.

SNOMED CT UK Monolith Edition, RF2: Snapshot

An integrated, fully merged release of the SNOMED CT UK Clinical Extension, the UK Drug Extension, the UK Pathology Extension and the International Edition as a single set of files in Release Format 2 (RF2).

The merged tables have been post-processed to resolve the duplicates and conflicts that occur across snapshots when they are distributed separately.

Find supporting documentation for the UK extensions on Delen:

• SNOMED CT UK Clinical Extension Release Documents
• SNOMED CT UK Drug Extension Release Documents

Status: Draft for Trial Use

SNOMED CT UK Query Table and History Substitution Table

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.

Status: Supported

SNOMED CT UK test releases

Releases of new or updated terminology and classification products, or their derivatives, in draft, beta, preview and proof-of-concept form.

These releases give implementors and suppliers previews of updates and developments.

Materials made available here are for evaluation only and might never transition to production versions.

Email questions or feedback to information.standards@nhs.net.

Status: Technology Preview

The Read Codes Drug and Appliance Dictionary

The final release of this item was on 1 April 2016.

To download releases of this item, email a request to information.standards@nhs.net.

UK Drug bonus files

SNOMED CT UK Drug Extension ePrescribing support files in Microsoft Excel and XML format, and the NHS dictionary of medicines and devices (dm+d) Parsed files.