Entry Statistics - OMIM - (OMIM.ORG)
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OMIM Entry Statistics


Number of Entries in OMIM (Updated May 18th, 2026) :

MIM Number Prefix Autosomal X Linked Y Linked Mitochondrial Totals
Gene description   * 16,932 804 53 37 17,826
Phenotype description, molecular basis known   # 6,698 398 5 35 7,136
Phenotype description or locus, molecular basis unknown   % 1,380 110 4 0 1,494
Other, mainly phenotypes with suspected mendelian basis 1,631 99 3 1 1,734
Totals 26,641 1,411 65 73 28,190

OMIM Entry Statistics


Number of Entries in OMIM (Updated May 18th, 2026) :

MIM Number Prefix Autosomal X Linked Y Linked Mitochondrial Totals
Gene description   * 16,932 804 53 37 17,826
Phenotype description, molecular basis known   # 6,698 398 5 35 7,136
Phenotype description or locus, molecular basis unknown   % 1,380 110 4 0 1,494
Other, mainly phenotypes with suspected mendelian basis 1,631 99 3 1 1,734
Totals 26,641 1,411 65 73 28,190


NOTE: OMIM is intended for use primarily by physicians and other professionals concerned with genetic disorders, by genetics researchers, and by advanced students in science and medicine. While the OMIM database is open to the public, users seeking information about a personal medical or genetic condition are urged to consult with a qualified physician for diagnosis and for answers to personal questions.
OMIM® and Online Mendelian Inheritance in Man® are registered trademarks of the Johns Hopkins University.
Copyright® 1966-2026 Johns Hopkins University.

NOTE: OMIM is intended for use primarily by physicians and other professionals concerned with genetic disorders, by genetics researchers, and by advanced students in science and medicine. While the OMIM database is open to the public, users seeking information about a personal medical or genetic condition are urged to consult with a qualified physician for diagnosis and for answers to personal questions.
OMIM® and Online Mendelian Inheritance in Man® are registered trademarks of the Johns Hopkins University.
Copyright® 1966-2026 Johns Hopkins University.
Printed: May 20, 2026