Skip Navigation Bar

Unified Medical Language System® (UMLS®)

SNOMED CT ® International Release Files

Download SNOMED CT International Releases and related international files from this page. Click on the file name to see more information and to download the release file.

Please note - The US Edition provides a single source of SNOMED CT content for use in the United States. The US Edition is a standalone release that contains the content of both the US Extension and the International release of SNOMED CT.

For older versions of the SNOMED CT Release see the Archives page.


Current SNOMED CT International Release Files

January 2016
RF2 Release (402.5 MB)
RF1 Release (164.48 MB)
SnomedCT_RF1CompatibilityPackage_INT_20160131.zip (202.5 MB)

Please note – The IHTSDO may be notified of users who download from non-Member countries.

October 2015
SNOMED CT Edición en Español (154 MB)


Additional SNOMED CT International Release Files

Candidate Baseline of General Practitioner/Family Practice Reference Sets and SNOMED CT to ICPC2 Map, October 2015

Download LinkRelease DateRelease NotesFile Size
SnomedCT_GPFPICPC2_Baseline_INT_20150930.zip September 2015

The SNOMED CT International General/Family Practice subset (GP/FP Subset) and map from the GP/FP Subset to the International Classification of Primary Care (ICPC-2). This is the baseline work release resulting from the harmonization agreement between the IHTSDO and WONCA.

Please note that use within clinical systems cannot be supported at this time. This Candidate Baseline is distributed for evaluation purposes only and should not be used in production clinical systems or in clinical settings.

This is an updated file, made available October 13, 2015.

1.003 MB

Baseline Release of the SNOMED CT to ICNP Cooperative Project, September 2015

Download LinkRelease DateRelease NotesFile Size
SnomedCT_ICNPRelease_Baseline_INT_20150901.zip September 2015

The International Classification of Nursing Practice (ICNP) to SNOMED CT nursing diagnoses (problems) equivalency table is a product of an ongoing work carried out under a preexisting collaboration agreement between the International Council of Nurses (ICN) and the International Health Terminology Standards Organization (IHTSDO). The release is a baseline release, and aligned to the July 2015 SNOMED CT International release. For those interested in the equivalency table, please contact the IHTSDO.

Please Note: The Release Baseline is distributed for evaluation purposes only and should not be used in production clinical systems or in the clinical setting.

Question and comments on this release should be directed to the IHTSDO with “SNOMED CT to ICNP Cooperative Project Baseline” in the subject line.

0.313 MB

Updated Technology Preview of the LOINC-SNOMED CT Cooperative Project, September 2015

Release Notes: A second release of the Technology Preview of the LOINC-SNOMED CT Cooperative Project is now available. This release includes both the LOINC Term to SNOMED CT Expression reference set and the LOINC Part to SNOMED CT Map reference set. This Technology Preview is dependent upon, and should be evaluated in the context of the July 2015 SNOMED CT International Release. This release is distributed in RF2, OWL, and human readable formats. The IHTSDO would like to recieve feedback on these releases. Please provide feedback by November 16, 2015 via the webform.

Please Note: These release files do not represent a set of data ready for clinical use within a system. These release files have been made available for review and evaluation purposes only.

Download LinkRelease DateFile Size
SnomedCT_LOINC_TechnologyPreview_INT_20150801.zip August 2015 2.114 MB
SnomedCT_LOINC_TechnologyPreview_HumanReadable_INT_20150801.zip August 2015 1.982 MB
SnomedCT_LOINC_TechnologyPreview_OWL_INT_20150801.zip August 2015 1.406 MB

Kaiser Permanente Starter Reference Set Technology Preview, October 2014

Download LinkRelease DateRelease NotesFile Size
SnomedCT_KPStarterReferenceSets_TechnologyPreview_INT_20141031.zip October 2014

This Technology Preview release should not be used in production clinical systems or in clinical settings. This Technology Preview is for evaluation by interested participants in the IHTSDO Community of Practice and feedback on the Technology Preview can be submitted directly to the IHTSDO with ‘Kaiser Permanente Starter Reference Sets’ in the subject line.

0.452 MB

Additional Information