SNOMED CT UK Edition
Read more about SNOMED CT and derivative products on Delen.
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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
Increasing SNOMED International description length limits
Following the Delen news article on the proposal to increase description length limits, SNOMED International has published the descriptions that will be increased beyond the previous 255-character limit in the August 2026 SNOMED CT International Edition, under item 29 here:
2026 Early Visibility Release Notifications
These descriptions will first appear in the SNOMED CT UK Edition release 43.0.0, due for publication on 30 September 2026 (see the 2026-2027 Release Schedule: SNOMED CT UK Edition page on Delen), as that release will include data from the August 2026 SNOMED CT International Edition.
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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