Online Mendelian Inheritance in Man® (OMIM®) was developed and is maintained by the McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine. It is made available online by the National Center for Biotechnology Information (NCBI) at the U.S. National Library of Medicine (NLM).
OMIM was developed as a catalog of Mendelian traits and disorders, with a focus on the relationship between phenotype and genotype.
OMIM is a comprehensive guide to human genes and genetic phenotypes with full-text, referenced overviews for all mendelian disorders and over 16,000 genes.
OMIM is primarily intended for use by:
OMIM is updated daily.
Metathesaurus Update Frequency
OMIM is updated annually in the Metathesaurus, as resources permit.