Medical concepts in SKOS, the international standard for knowledge schemes.

In operational and practical fact, the medium is the message. ... the personal and social consequences of any medium ... result from the new scale that is introduced into our affairs
-- Marshall McLuhan, Understanding Media

Schemes

ATC - Anatomical Therapeutic Chemical Classification System
FDAOB - FDA Orange Book
HPTC - Healthcare Provider Taxonomy Codes
ICD 9 CM - International Classification of Diseases, Ninth Revision
LOINC - Logical Observation Identifiers Names and Codes
MTHSPL - National Drug Codes and Structured Product Labels
NCIT - NCI Thesaurus (Subset for drugs)
NDFRT - VHA National Drug File – Reference Terminology
RXNORM - Clinical drug nomenclature from the National Library of Medicine
SNOMED CT - Clinical terminology from IHTSDO
UNII - FDA Unique Ingredient Identifiers

SKS