You are viewing the Unified Medical Language System BioPortal Slice at umls.bioportal.bioontology.org. To see all of the ontologies in BioPortal visit the full site.

Ontology Visits (January 2018)

# name # visits
1 Current Procedural Terminology (CPT) 76,627
2 SNOMED CT (SNOMEDCT) 17,939
3 RxNORM (RXNORM) 16,947
4 National Drug Data File (NDDF) 11,113
5 Medical Dictionary for Regulatory Activities (MEDDRA) 4,830
6 Logical Observation Identifier Names and Codes (LOINC) 2,491
7 National Drug File - Reference Terminology (NDFRT) 2,126
8 National Cancer Institute Thesaurus (NCIT) 1,657
9 Read Codes, Clinical Terms Version 3 (CTV3) (RCD) 1,215
10 Veterans Health Administration National Drug File (VANDF) 750
11 Medical Subject Headings (MESH) 668
12 International Classification of Diseases, Version 9 - Clinical Modification (ICD9CM) 668
13 International Classification of Diseases, Version 10 - Clinical Modification (ICD10CM) 643
14 International Classification of Diseases, Version 10 (ICD10) 478
15 Foundational Model of Anatomy (FMA) 471
16 Online Mendelian Inheritance in Man (OMIM) 348
17 International Classification of Diseases, Version 10 - Procedure Coding System (ICD10PCS) 328
18 World Health Organization (WHO) Adverse Reaction Terminology (WHO-ART) 318
19 National Center for Biotechnology Information (NCBI) Organismal Classification (NCBITAXON) 286
20 Gene Ontology (GO) 284
21 Master Drug Data Base Clinical Drugs (MDDB) 118
22 International Classification of Primary Care (ICPC) 98
23 International Classification of Primary Care - 2 PLUS (ICPC2P) 70
24 Computer Retrieval of Information on Scientific Projects Thesaurus (CRISP) 62
25 Healthcare Common Procedure Coding System (HCPCS) 49
26 Physician Data Query (PDQ) 35
27 Coding Symbols for a Thesaurus of Adverse Reaction Terms (COSTART) 21
28 MedlinePlus Health Topics (MEDLINEPLUS) 14
29 Gene Ontology Extension (GO-EXT) 7
30 Artificial Intelligence Rheumatology Consultant System Ontology (AI-RHEUM) 7
31 Nursing Interventions Classification (NIC) 0