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NLM Classification Updated, September 30, 2020

September 30, 2020

Beginning with the 2020 summer edition, the NLM Classification has a new look and feel. With this new design comes a new URL:  The old URL: will automatically be redirected to the new one. The new site functions best in Chrome or Firefox.

The 2020 sumer version, published September 30, 2020, encompasses the systematic review of the WD (Disorders of Systemic, Metabolic or Environmental Origin, etc.) and WO (Surgery) and other miscellaneous updates. 

For more information about the scope of the 2020 summer edition, see

Contact NLM for further information, questions, or comments.


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Last Reviewed: September 30, 2020