NLM Classification Updated, August 23, 2018August 21, 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.
The National Library of Medicine (NLM) is a leader in research in biomedical informatics and data science and the world’s largest biomedical library. NLM conducts and supports research in methods for recording, storing, retrieving, preserving, and communicating health information. NLM creates resources and tools that are used billions of times each year by millions of people to access and analyze molecular biology, biotechnology, toxicology, environmental health, and health services information. Additional information is available at https://www.nlm.nih.gov.
Last Reviewed: August 21, 2018