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NLM Classification Updated, August 23, 2018

The NLM Classification, available online at https://www.nlm.nih.gov/class/, is updated two times a year.

The 2018 winter version, published January 31, 2018, encompassed changes to the NLM Classification resulting from new and changed 2018 Medical Subject Headings (MeSH) terms as well as additional minor updates to the index and schedule.

The 2018 summer version, published August 23, 2018, encompasses the systematic review of particular schedules and other miscellaneous updates.

For more information about the scope of the 2018 summer edition, see https://www.nlm.nih.gov/class/Scope.html.

Contact NLM for further information, questions, or comments.

Since its founding in 1836, the National Library of Medicine https://www.nlm.nih.gov has played a pivotal role in translating biomedical research into practice and is a leader in information innovation. NLM is the world's largest medical library, and millions of scientists, health professionals and the public around the world use NLM services every day.

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