Terminology & standards

HDB-0072

SNOMED CT

SNOMED International SNOMED CT is a systematized nomenclature of medicine clinical terminology system maintained by SNOMED International, a non-profit organization. It provides standardized international multilingual clinical terminology used globally to code clinical findings, procedures, diagnoses, and medical concepts in healthcare systems. Terminology Credentialed HDB-0073

LOINC

Regenstrief Institute LOINC is an international standard for identifying health observations, measurements, and laboratory tests maintained by the Regenstrief Institute at Indiana University. It enables healthcare systems to identify, exchange, and aggregate clinical data using unique standardized codes for laboratory and clinical observations. Terminology Open access HDB-0074

RxNorm

National Library of Medicine RxNorm is a normalized naming system for generic and branded clinical drugs maintained by the National Library of Medicine, part of the NIH. It provides normalized drug names and links to drug vocabularies commonly used in pharmacy management and drug interaction systems for semantic interoperation. Terminology Open access HDB-0075

WHO ICD-11

World Health Organization The International Classification of Diseases 11th Revision (ICD-11) is the global standard for diagnostic health information maintained by the World Health Organization. It provides a standardized system for classifying diseases, disorders, injuries, and health conditions used worldwide for healthcare management and clinical documentation. Terminology Open access HDB-0076

UMLS

National Library of Medicine The Unified Medical Language System (UMLS) is a comprehensive repository of biomedical and health terminologies maintained by the National Library of Medicine, part of the NIH. It integrates over 100 medical vocabularies including SNOMED CT, LOINC, and RxNorm to enable interoperability and cross-referencing between different healthcare coding systems. Terminology Credentialed HDB-0077

DrugBank

University of Alberta DrugBank is a comprehensive online database containing detailed information on drugs, drug targets, and drug interactions created and maintained by the University of Alberta and The Metabolomics Innovation Centre in Canada. It provides structured biomedical knowledge on approved and experimental drugs used by researchers for drug discovery and pharmacology research. Terminology Free registration HDB-0078

WHO ATC/DDD Index

WHO Collaborating Centre for Drug Statistics Methodology The Anatomical Therapeutic Chemical (ATC) Classification System and Defined Daily Dose (DDD) system is maintained by the WHO Collaborating Centre for Drug Statistics Methodology hosted by the Norwegian Institute of Public Health. It provides an international standard system for classifying drugs and measuring medication usage in drug utilization research and monitoring. Terminology Free registration HDB-0079

OHDSI Athena

Observational Health Data Sciences and Informatics Athena is a web application for distributing and browsing standardized vocabularies for the Observational Medical Outcomes Partnership (OMOP) Common Data Model maintained by OHDSI. It integrates over 136 vocabularies including SNOMED CT, LOINC, and RxNorm to facilitate data harmonization across observational health research networks. Terminology Open access