Download SNOMED CT International Edition releases and related international files from this page. Click on the file name to see more information and to download the release file. NLM distributes the SNOMED CT International Edition and derivatives to licensed individuals via the UMLS Terminology Services. Please see the Licensing page to learn more about licensing and how to register to obtain an Affiliate License.
Please note - The US Edition provides a single source of SNOMED CT content for use in the United States. The SNOMED CT US Edition is a standalone release that contains the content of both the US Extension and the International Editions of SNOMED CT.
For older versions of all SNOMED CT Releases see the Archives page.
For the latest planned changes to upcoming SNOMED CT International Release packages, see the Early Visibility Release Notice page.
Current International Edition Release
NOTE: For the SNOMED CT SARS-CoV-2/COVID-19 content, see: http://snomed.org/covid-19
Version: April 2025
Release Date: March 28, 2025
SNOMED CT terminology provides a common language that enables a consistent way of indexing, storing, retrieving, and aggregating clinical data across specialties and sites of care. The release notes provide a summarized description of the content changes included in the April 2025 release.
Download RF2 Files Now!Download Release Notes
Online version of Release Notes
MD5 hash for RF2 package: 4cd2e34d2a641f1016a8d1a935628243
Announcement - Reminder of SNOMED International proposal to increase description character limit
SNOMED International, owners of SNOMED CT, propose to increase the maximum length of Fully Specified Name (FSN) and Synonym descriptions from 255 characters to 4096 characters. The requirement for this change has come from the Pharmaceutical / biologic product hierarchy, where the terming guidance for FSNs causes the current limit to be exceeded where there is a large number of ingredients in a medicinal product, which is particularly common in multivalent vaccines.
There is some likelihood that implementers will have hardcoded database schemas to 255 characters, so a significant lead time is proposed before this change would take effect. The current proposal would be for the changes to be implemented in late 2025.
It is important to note that there is absolutely no intention to increase the length of a multitude of the International Descriptions. The proposal is simply to increase the maximum possible size to 4096, in order to allow a small number of necessarily longer terms to be consumed. However, most Descriptions will remain at their current length, well below 255 characters.
Please see the latest Q&A blog post by SNOMED International Technical Specialist Peter Groves Williams, who explains the proposed change, its potential benefits, the feedback process and timelines, and the issues that may need to be considered in such an update. You can also find the full proposal here.
Version: September 2024 SNOMED CT Spanish Edition
Versión Septiembre 2024 de la Edición en Español de SNOMED CT
Release Date: 2024-09-30
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Online version of Release Notes
MD5 hash for RF2 package:
53171be7f9706d5cb4b072b054bb5a9f
Please Note: The IHTSDO may be notified of users who download SNOMED CT from non-Member countries.
Previous SNOMED CT International Monthly Release Files
Version: March 2025
Release Date: February 28, 2025
SNOMED CT terminology provides a common language that enables a consistent way of indexing, storing, retrieving, and aggregating clinical data across specialties and sites of care. The release notes provide a summarized description of the content changes included in the March 2025 release.
Download RF2 Files Now!Download Release Notes
Online version of Release Notes
MD5 hash for RF2 package: 4faae1126b7bc1c3b808df5c5b38c48a
Version: February 2025
Release Date: January 31, 2025
SNOMED CT terminology provides a common language that enables a consistent way of indexing, storing, retrieving, and aggregating clinical data across specialties and sites of care. The release notes provide a summarized description of the content changes included in the February 2025 release.
Download RF2 Files Now!Download Release Notes
Online version of Release Notes
MD5 hash for RF2 package: 9d14ef50686ebae21e7c60641f1721f1
Version: January 2025
Release Date: January 1, 2025
SNOMED CT terminology provides a common language that enables a consistent way of indexing, storing, retrieving, and aggregating clinical data across specialties and sites of care. The release notes provide a summarized description of the content changes included in the January 2025 release.
Download RF2 Files Now!Download Release Notes
Online version of Release Notes
MD5 hash for RF2 package: 216e779a0af4b68637c70f7bafea3734
Additional SNOMED CT International Release Files
Version: January 2025
Release Date: 2025-03-21
This is the Production release of the January 2025 SNOMED CT International Nutrition Care Process Terminology (NCPT) Reference Set package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT January 2025 International Edition, and so should be consumed and analyzed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT NCPT Refset Release Notes - January 2025
Download SNOMED CT Nutrition Care Process Terminology (NCPT) Refset Package
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MD5 hash for RF2 package:
869ed5a5a03881ec2b31ab830d746efe
Version: January 2025
Release Date: 2025-03-21
This is the Production release of the January 2025 ICNP SNOMED CT Nursing Practice Refset package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT January 2025 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT ICNP Nursing Practice Refset Release Notes - January 2025
Download SNOMED CT ICNP Nursing Practice Refset
Download Release NotesView Release Notes
MD5 hash for RF2 package:
2743f87aa0770d9f79d91e3df1c4b785
Version: January 2025 v1.0
Release Date: 2025-03-21
This is the Production release of the January 2025 SNOMED CT International General/Family Practice subset (GP/FP Subset). This release is resulting work from the harmonization agreement between the IHTSDO and WONCA.
The version of SNOMED CT used is the January 2025 International Edition release.
Please note: SNOMED International and WONCA have decided to deprecate the SNOMED CT to ICPC-2 map. SNOMED International have therefore inactivated all ICPC-2 map records in the current release package, ceased publishing the ICPC-2 release notes, and removed references to ICPC-2 in package naming conventions. Please contact info@snomed.org with any questions, comments, or concerns.
Download GP/FP-SNOMED CT Release NotesView GP/FP-SNOMED CT Release Notes
MD5 hash for RF2 package:
824ddcd586b596e73ea1bbc6fca40ce4
Version: November 2024
Release Date: 2024-11-08
This is the Production release of the November 2024 EDQM Dose Forms to SNOMED CT Map package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2024 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: EDQM Dose Forms to SNOMED CT Map package PRODUCTION Release Notes - November 2024
Download EDQM Dose Forms to SNOMED CT Map package
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MD5 hash for RF2 package:
3c4199e2b58202c11a402550dca50e4a
Version: April 2024
Release Date: 2024-04-30
This is the Production release of the April 2024 SNOMED CT MedDRA Simple Map package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT January 2024 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT MedDRA Simple Map Release Notes - April 2024
Download SNOMED CT MedDRA Simple Map Package
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MD5 hash for RF2 package:
03b29b0761f0b0f9fa14b4a4eeb68629
Version: July 2024
Release Date: 2024-10-14
This is the Production release of the July 2024 SNOMED CT Orphanet Map package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2024 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT Orphanet Map package Release Notes - July 2024
Download SNOMED CT Orphanet Map package
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MD5 hash for RF2 package:
5b5311147a853f2289fb02e2f0b9e8ef
Version: July 2024 v1.0
Release Date: 2024-12-11
This is the Production release of the July 2024 SNOMED CT International Patient Set (IPS) Refset.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2024 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT International Patient Set (IPS) Release Notes - July 2024
Download SNOMED CT International Patient Set (IPS) RefsetDownload Release Notes
MD5 hash for RF2 package:
a22465beb3cc04581d8339f64ba74f9c
Version: July 2024 v1.0
Release Date: 2024-12-19
The SNOMED CT General Dentistry Diagnostic refset package contains the SNOMED CT General Dentistry refset of diagnostic terms, designed to provide dentistry with an easy to implement set of terms that covers the vast majority of care provided in the dental field.
This is the Production release of the July 2024 SNOMED CT General Dentistry Diagnostic refset package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2024 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT General Dentistry Diagnostic refset package Release Notes - July 2024
Download SNOMED CT General Dentistry Diagnostic Refset (Version 20241220)
Download SNOMED CT General Dentistry Diagnostic Release NotesView Release Notes
MD5 hash for RF2 package:
0134405977459ecc6bf2fda6e4488a41
Version: July 2024 v1.0
Release Date: 2024-12-18
This package contains the SNOMED CT Odontogram refset, which includes a set of SNOMED CT content from the International Release - primarily terms from four of the SNOMED CT hierarchies:
- Procedures
- Body Structures
- Findings
- Disorders
For those who are starting to implement SNOMED CT in Dentistry, you should be aware that SNOMED CT contains a large amount of content relevant to the profession. An additional related product is the SNOMED CT General Dentistry Diagnostic refset package.
This is the Production release of the July 2024 SNOMED CT Odontogram refset package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2024 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT Odontogram refset package Release Notes - July 2024
Download SNOMED CT Odontogram Refset (Version 20241220)
Download SNOMED CT Odontogram Release NotesView Release Notes
MD5 hash for RF2 package:
367e477f48f59a03950585be01ec1cca
Version: July 2021 v1.0
Release Date: 2021-10-29
This is the Production release of the July 2021 SNOMED CT Nursing Activities refset package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2021 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT Nursing Activities Reference Set Release Notes - July 2021
Download SNOMED CT Nursing Activities Refset
Download Release NotesView Release Notes
MD5 hash for RF2 package:
e6960ad63731c4572b9ef629039a0687
Version: July 2021 v1.0
Release Date: 2021-10-29
This is the Production release of the July 2021 SNOMED CT Nursing Health Issues refset package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2021 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: SNOMED CT Nursing Health Issues Reference Set Release Notes - July 2021
Download SNOMED CT Nursing Health Issues Refset
Download Release NotesView Release Notes
MD5 hash for RF2 package:
663af6a48874670c2d3f2afb129dcc95
Version: July 2018 v1.0
Release Date: 2018-09-26
This is the Production release of the July 2018 ICNP to SNOMED CT (Interventions) package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2018 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: ICNP to SNOMED CT (Interventions) Equivalency Table Release Notes - July 2018
Download ICNP to SNOMED CT (Interventions) Equivalency Table
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MD5 hash for RF2 package:
c99463977bdf4102275ba22ba2c6834a
Version: July 2018 v1.0
Release Date: 2018-09-26
This is the Production release of the July 2018 ICNP to SNOMED CT (Diagnoses) package.
This package is provided in Release Format 2 (RF2) format only. It is dependent upon the SNOMED CT July 2018 International Edition, and so should be consumed and analysed accordingly.
For more information please refer to the release notes, which can either be downloaded from this repository, or accessed online here: ICNP to SNOMED CT (Diagnoses) Equivalency Table Release Notes - July 2018
Download ICNP to SNOMED CT (Diagnoses) Equivalency Table
Download Release NotesView Release Notes
MD5 hash for RF2 package:
545269a9baa335abc4e9ed3d200b037b
Release Date: August 2017
Release Notes: This release contains two content files: a LOINC Term to SNOMED CT Expression Reference Set and a LOINC Part to SNOMED CT Reference Set. The Beta content is release under the 715515008 | LOINC - SNOMED CT Cooperation Project module with concept identifiers from the 220170731 version of the International release of SNOMED CT and Version 2.58 of LOINC released December 2016.
Please Note: This release is distributed for evaluation purposes only and should not be used in production clinical systems or in the clinical setting.
Release Date: February 2017
This package contains the SNOMED CT International Edition concept model represented using RF2 reference sets. In addition to the four new MRCM refsets, the Beta release package also contains various files (Concept, Description, etc) containing supporting content from the prospective July 2017 SNOMED CT International Edition. These are provided in order to aid the consumption and analysis of the MRCM refsets, and should not be used for any other purpose.
Please Note: This supporting content is provisional, and can not be considered final until July 31st 2017. It should therefore not be used in any Production systems and should be used only in test systems to aid the evaluation of the MRCM refsets.
Permanent Packages were previously included in the SNOMED CT International Edition Release Format 1 (RF1) distribution. Because the files do not change from one release to the next, as of January 2015, the files have been made permanently available to IHTSDO Member National Release Centers and Affiliate Licensees via Internet download. They are no longer included in the International Edition.
Older versions of SNOMED CT International and US Edition release sources are still made available for research or historical purposes. To obtain deprecated or older versions of SNOMED CT releases, please visit NLM SNOMED CT Archives page:
Additional Information
Terms of use for SNOMED CT are contained in Appendix 2, SNOMED CT Affiliate Licence Agreement, of the License for Use of the UMLS Metathesaurus.
NLM also distributes SNOMED CT through the UMLS Metathesaurus.
See the SNOMED CT main page for more information about SNOMED CT activities at NLM.
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Last Reviewed: June 30, 2023