Vocabularies

130+ medical vocabularies, all queryable through one API — with concept counts, standard/classification breakdowns, and domain coverage for each.

130 of 130 vocabularies

RxNorm Extension

OMOP RxNorm Extension

1,944,466 concepts

Structured Product Labeling (FDA)

880,047 concepts

National Drug Code (FDA and manufacturers)

778,404 concepts

Dictionary of Medicines and Devices (NHS)

420,561 concepts

Systematic Nomenclature of Medicine - Clinical Terms (IHTSDO)

412,033 concepts

Medical Subject Headings (NLM)

355,177 concepts

Nebraska Lexicon

Nebraska Lexicon (UNMC)

351,163 concepts

Logical Observation Identifiers Names and Codes (Regenstrief Institute)

234,951 concepts

213,854 concepts

OMOP Genomic vocabulary of known variants involved in disease

205,199 concepts

OpenStreetMap (OSMF)

203,339 concepts

Korean Electronic Data Interchange code system (HIRA)

202,581 concepts

ICD-10 Procedure Coding System (CMS)

197,095 concepts

Australian Medicines Terminology (NEHTA)

135,977 concepts

NHS UK Read Codes Version 2 (HSCIC)

102,217 concepts

International Classification of Diseases, Tenth Revision, Clinical Modification (NCHS)

98,186 concepts

Korean Drug Code (HIRA)

63,861 concepts

International Classification of Diseases for Oncology, Third Edition (WHO)

61,479 concepts

Drug Product Database (Health Canada)

55,976 concepts

Columbia International eHealth Laboratory (Columbia University)

55,171 concepts

Normalized Chinese Clinical Drug knowledge base (UTHealth)

51,583 concepts

National Drug File - Reference Terminology (VA)

45,093 concepts

International Classification of Diseases, Tenth Revision, French Edition (ATIH)

42,886 concepts

Operations and Procedures Classification (OPS)

39,540 concepts

Japan Medical Data Center Drug Code (JMDC)

38,798 concepts

International Classification of Diseases, Tenth Revision, Chinese Edition (CAMS)

34,491 concepts

Data Standards & Data Dictionary Volume II (NAACCR)

34,060 concepts

SNOMED Veterinary

SNOMED Veterinary Extension (VTSL)

32,838 concepts

OMOP Invest Drug

OMOP Investigational Drugs

31,328 concepts

Veterans Health Administration National Drug File (VA))

31,284 concepts

Clinical Formulation ID (FDB)

29,658 concepts

Clinical Data Interchange Standards Consortium

29,018 concepts

Public Database of Medications (Social-Sante)

26,495 concepts

Korean Standard Classification of Diseases and Causes of Death, 7th Revision (STATISTICS KOREA)

22,508 concepts

Human Phenotype Ontology

19,393 concepts

UK Biobank (UK Biobank)

19,337 concepts

International Classification of Diseases, Ninth Revision, Clinical Modification, Volume 1 and 2 (NCHS)

17,552 concepts

International Classification of Diseases, Tenth Revision, German Edition

16,822 concepts

International Classification of Diseases, Tenth Revision (WHO)

16,175 concepts

International Classification of Diseases, Ninth Revision, Chinese Edition, Procedures (CAMS)

13,385 concepts

13,063 concepts

Commented Drug Directory (BCFI)

12,761 concepts

OPCS Classification of Interventions and Procedures version 4 (NHS)

10,994 concepts

Healthcare Common Procedure Coding System (CMS)

10,751 concepts

Common Classification of Medical Acts (ATIH)

Cerner Multum (Cerner)

Comparative Toxicogenomic Database (NCSU)

Oxford Medical Information System (OCHP)

The Clinical Knowledgebase (The Jackson Laboratory)

WHO Anatomic Therapeutic Chemical Classification

AllOfUs_PPI (Columbia)

Oncology Knowledge Base (MSK)

Cancer Modifier

Diagnostic Modifiers of Cancer (OMOP)

Cancer Genome Interpreter (Pompeu Fabra University)

International Classification of Diseases, Ninth Revision, Clinical Modification, Volume 3 (NCHS)

Table of Procedures, Drugs, Orthoses, Protheses and Special Materials (Brazilian Unified Health System)

EORTC Quality of Life questionnaires

CO-CONNECT TWINS

CO-CONNECT TWINS (University of Nottingham)

Race and Ethnicity Code Set (USBC)

OMOP Extension (OHDSI)

Clinical Interpretation of Variants in Cancer (civicdb.org)

OMOP Common DataModel

Unified Code for Units of Measure (Regenstrief Institute)

Anatomical Classification of Pharmaceutical Products (EphMRA)

National Uniform Claim Committee Health Care Provider Taxonomy Code Set (NUCC)

Diagnosis-related group (CMS)

OMOP Relationship

Ambulatory Payment Classification (CMS)

New Form Code (EphMRA)

SINGAPORE COHORTS

VA National Drug File Class (VA)

UB04/CMS1450 Revenue Codes (CMS)

CO-CONNECT (University of Nottingham)

NCI Thesaurus (National Cancer Institute)

OMOP Concept Class

Standardised MedDRA Queries (MSSO)

UB04 Type of Bill - Institutional (USHIK)

CDC Vaccine Administered CVX (NCIRD)

International Currency Symbol (ISO 4217)

Source of Payment Typology (PHDSC)

Hospital Episode Statistics Specialty (NHS)

OMOP Vocabulary

Medicare Specialty

Medicare provider/supplier specialty codes (CMS)

OMOP Condition Occurrence Type

OMOP Procedure Occurrence Type

Provider Specialty (American Board of Medical Specialties)

OMOP Type Concept

National Patient-Centered Clinical Research Network (PCORI)

Legacy OMOP HOI or DOI cohort

CMS Place of Service

Place of Service Codes for Professional Claims (CMS)

CO-CONNECT MIABIS

CO-CONNECT MIABIS (University of Nottingham)

UB04 Pt dis status

UB04 Patient Discharge Status Code (CMS)

Observation Type

OMOP Observation Type

Major Diagnostic Categories (CMS)

UB04 Point of Origin

UB04 Claim Source Inpatient Admission Code (CMS)

Condition Status

OMOP Condition Status

OMOP Visit Type

OMOP Drug Exposure Type

NHS Ethnic Category

NHS Ethnic Category

NHS Place of Service

NHS Admission Source and Discharge Destination

OMOP Death Type

Census regions of the United States (USCB)

Plan Stop Reason

OMOP Plan Stop Reason

OMOP Measurement Type

OMOP Health Plan

Korean Revenue Code

Korean Revenue Code (KNHIS)

Obs Period Type

OMOP Observation Period Type

UB04 Pri Typ of Adm

UB04 Claim Inpatient Admission Type Code (CMS)

OMOP Episode Type

Modernizing Medicine (MMI)

OMOP Device Type

Korean Payer (KNHIS)

OMOP Standardized Vocabularies

OMOP Specimen Type

OMOP Cohort Type