Table of Contents RSS Home Back Issues Indexes
November 04, 2009 [posted]

UMLS® 2009AB Release Available

graphical image of the letter T

The 2009AB release of the Unified Medical Language System® (UMLS) Knowledge Sources is available for download as of November 3, 2009.

RxNorm and SNOMED CT® are also available for download.

In this UMLS Release there are:


Additional release statistics are published on the UMLS Web site. For more information about the release, see the What's New section of the Release Documentation.

To access the UMLS Release files, you must have an active UMLS Metathesaurus® license and a valid UMLSKS account. You will be prompted for your UMLSKS Login ID and Password when downloading the files.

Additional information regarding the UMLS is available on the UMLS homepage. New users are encouraged to take the UMLS Basics Tutorial and to explore the training materials and other information on the New Users' homepage.


As always, the production and mailing of the UMLS DVDs occur about four weeks after the release is made available for download. Those licensees who requested the DVD for the previous release (2009AA) will automatically receive a DVD copy of the current release. If you did not receive the previous release on DVD and want the current release on DVD, Contact NLM and include your license code in the request.

MetamorphoSys Changes

MetamorphoSys has undergone a number of changes including the addition of new filters, features for developers, and new load script options. These changes will be discussed in a Webcast on December 2, 2009 at 2:00 pm ET. The URL for the Webcast will posted on the UMLS Webcast page prior to the beginning of the meeting.

The RRF Browser has been enhanced, including four new browsing options: cluster views, hyperlinked data in the Report View, refine searches, and highlight search results. These new options will be explained in forthcoming RRF Browser Quick Tours, which will be available from the UMLS User Education homepage. For information about other changes in the RRF Browser please see the What's New section of the Release Documentation, or consult the new Help screens within the Browser.

As of this version of MetamorphoSys, old configuration files can no longer be used. Future versions of MetamorphoSys will maintain backward compatibility, but configuration files developed for the 2009AA release or earlier will not function with the 2009AB MetamorphoSys Release or future releases.

In addition, Mac users must have Java Runtime Environment (JRE) Version 1.6 to create or browse a subset. A separate MetamorphoSys release download will be available from the UMLS Web site for Mac JRE 1.5 users for this 2009AB release.

For more information about the changes in MetamorphoSys please see the MetamorphoSys Section of the What's New of the Release Documentation.

UMLS® 2009AB Release Available. NLM Tech Bull. 2009 Nov-Dec;(371):e1.

Stay Current E-Mail Sign Up Home Back Issues Indexes