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Unified Medical Language System® (UMLS®)

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  • SNOMED CT: Updated US Edition and CORE Problem Subset, March 2015
    March 2, 2015
    The March 2015 US Edition of SNOMED CT is available for download. In addition to 839 new concepts specific to the US, the March US Edition of SNOMED CT combines the content from the January 2015 International Release of SNOMED CT. The data are available to UTS account holders and please note the RF1 and RF2 release files are now two separate download files.


    Additionally, the updated Clinical Observations Recording and Encoding (CORE) Problem List Subset is now available for download. This subset is based on the January 2015 International Release of SNOMED CT and the 2014AB UMLS Release.

  • New CMT Subset Available, February 2015
    February 4, 2015
    A new problem list subset from Kaiser Permanente is available for download. This release contains two problem list subsets used in KP electronic medical records to describe Specimen Source and Specimen Type. There are 556 concepts in the Specimen Source file and 621 concepts in the Specimen Type file. SNOMED CT concepts are based on the 1/31/2014 International Release.

  • SNOMED CT International Release, January 31, 2015
    February 2, 2015
    The January 2015 International Release of SNOMED CT is available for download. The RF1 and RF2 release files are now two separate download files. The SNOMED CT RF1 Compatibility Package tools are available for download from the same Web page. The SNOMED CT RF2 to RF1 Conversion files and additional RF1 files can be found on the SNOMED CT Permanent Packages page.

  • Human Readable version of LOINC-SNOMED CT Cooperative Project Technology Preview, January 2015
    January 24, 2015
    A new human readable version of Technology Preview release is now available and the IHTSDO is requesting feedback on the LOINC-SNOMED CT Cooperative Project Technology Preview. This Technology Preview does not represent a set of data ready for clinical use within a system and has been made available at this time for review and evaluation purposes only. Thus, this release should not be used in production clinical systems or in clinical settings. Deadline for feedback is February 28, 2015 via the online feedback from.

  • New ICD-9-CM Diagnostic Codes to SNOMED Map Available, December 2014
    December 10, 2014
    The updated ICD-9-CM Diagnostic Codes to SNOMED CT map is available for download. The map is based on ICD-9-CM 2013 and the September 2014 US Edition of SNOMED CT.