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Terminology products

NHS England is responsible for the UK implementation and management of SNOMED CT, the Read Codes, and other terminology products used in health and care. This includes associated tools and derivative resources.

NHS England maintains the NHS Dictionary of Medicines and Devices (dm+d) in partnership with the NHS Business Services Authority.

News and release notices

Increasing SNOMED International description length limits

Following the Delen news article on the proposal to increase description length limits, SNOMED International has published a briefing note, available on Delen:

MF Briefing Note - Conclusion on Increasing Description Type length limits

A blog post with further information is also available on the SNOMED International website:

Blog: SNOMED International concludes community feedback period on proposed description character limit increase and finalizes next steps

As SNOMED International has outlined, the change to the description length limits will be implemented in the 1 July 2026 International Edition release. It will take effect in the October 2026 SNOMED CT UK release.

If you have any questions or concerns, email information.standards@nhs.net.


1 October 2025 9:00am

SNOMED CT UK Data Migration Workbench

A new release of item SNOMED CT UK Data Migration Workbench is available.


1 October 2025 6:06am

SNOMED CT human-readable subsets

New releases are available:

  • SNOMED CT human-readable subset - UK Clinical Extension
  • SNOMED CT human-readable subset - UK Drug Extension

1 October 2025 6:06am

SNOMED CT UK Query Table and History Substitution Table

A new release of item SNOMED CT UK Query Table and History Substitution Table is available.


1 October 2025 6:06am

UK Drug bonus files

A new release of item UK Drug bonus files is available.


1 October 2025 6:06am

SNOMED CT UK Monolith Edition, RF2: Snapshot

A new release of item SNOMED CT UK Monolith Edition, RF2: Snapshot is available.


1 October 2025 6:06am

SNOMED CT UK Drug Extension, RF2

New releases are available:

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

1 October 2025 6:05am

SNOMED CT UK Clinical Edition, RF2

New releases are available:

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

1 October 2025 6:00am

Aligning the SNOMED CT UK Drug Extension model with SNOMED International

Further to the news on Delen regarding changes to the SNOMED CT UK Drug Extension, NHS England will go live with the phase 1 changes in release 41.0.0, due for publication on 1 October 2025.

For more detail about this work, see NHS England's updating the SNOMED CT UK Drug Extension model page.

If you have questions or concerns, contact: nhsdigital.ukmeds@nhs.net


1 September 2025 9:00am

Read older news and release notices in the news archive.

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