OHDSI Technical Specifications
This section contains technical specifications and standards developed by the OHDSI community and maintained by the OHDSI Technical Advisory Board. These specifications attempt to ensure consistency, interoperability, and quality across OHDSI tools and data standards.
DRAFT Specifications
Concept Set
A Concept Set is a JSON structure used in the OHDSI (Observational Health Data Sciences and Informatics) community to define and manage a standardized collection of medical concepts. Concept Sets are typically used to specify collections of standardized vocabulary concepts for use in observational research, cohort definitions, and analytics, enabling consistent identification of clinical phenomena across different healthcare databases.