SNOMED CT UK Edition
Read more about SNOMED CT and derivative products on Delen.
Email questions or feedback to information.standards@nhs.net.
Items in this category Jump to summaries
SNOMED CT UK Clinical Edition Cross-map Historical Files, RF2: Full
SNOMED CT UK Clinical Edition, RF2: Delta
SNOMED CT UK Clinical Edition, RF2: Full, Snapshot & Delta
SNOMED CT UK Drug Extension, RF2: Delta
SNOMED CT UK Drug Extension, RF2: Full, Snapshot & Delta
SNOMED CT UK Monolith Edition, RF2: Snapshot
News for this category
SNOMED International rationalisation of Unit of Measure concepts
SNOMED International is making changes to 2 overlapping hierarchies:
- 732935002 |Unit of presentation|
- 408102007 |Unit dose (qualifier value)|
These changes will result in the inactivation of duplicate concepts across both sub-hierarchies. Both sub-hierarchies are subtypes of 767524001 |Unit of measure (qualifier value)|.
Read more about these changes on Delen (opens in new tab).
Some affected "Unit of product usage" concepts are used in the NHS dictionary of medicines and devices (dm+d) as Units of Measure.
NHS England is seeking feedback from dm+d and SNOMED CT Drug Extension users to understand the potential impact on systems, workflows, processes and end users. Your input will help NHS England plan and implement any changes effectively.
Complete the survey (opens in new tab) by 5pm on Friday 24 April 2026.
If you have any questions or would like to discuss this further, contact information.standards@nhs.net.
Read older category news in the news archive.
Item summaries
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
Each release of this item contains the SNOMED CT UK Clinical Edition in Release Format 2 (RF2), Delta type only.
Each release includes the UK Clinical Extension and the International Edition, along with refsets, cross-maps and added-value content.
The Delta type includes only the changes since the previous release, including any new components.
For more information, see the SNOMED CT pages on Delen.
SNOMED CT UK Clinical Edition, RF2: Full, Snapshot & Delta
Each release of this item contains the SNOMED CT UK Clinical Edition in Release Format 2 (RF2), including all release types.
Each release includes the UK Clinical Extension and the International Edition, along with refsets, cross-maps and added-value content.
All RF2 release types – Full, Snapshot and Delta – are included.
For more information, see the SNOMED CT pages on Delen.
SNOMED CT UK Drug Extension, RF2: Delta
Each release of this item contains the SNOMED CT UK Drug Extension in Release Format 2 (RF2), Delta type only.
Each release includes the RF2 Delta files, drug-only refsets and added-value content.
These releases do not include the SNOMED CT UK Clinical Extension or the International Edition.
For more information, see the SNOMED CT pages on Delen.
SNOMED CT UK Drug Extension, RF2: Full, Snapshot & Delta
Each release of this item contains the SNOMED CT UK Drug Extension in Release Format 2 (RF2), including all release types.
Each release includes all RF2 types (Full, Snapshot and Delta), drug-only refsets and added-value content.
These releases do not include the UK Clinical Extension or the International Edition.
For more information, see the SNOMED CT pages on Delen.
SNOMED CT UK Monolith Edition, RF2: Snapshot
Each release of this item contains an integrated, fully merged set 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 are post-processed to resolve duplicates and conflicts that can occur when separate snapshots are combined.
Status: Draft for Trial Use
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