U.S. Health Information Knowledgebase

Overview
The U.S. Health Information Knowledgebase (USHIK) is a publicly available website, developed by the AHRQ,

"where information (metadata: such as name, definition, how they are represented) about the data elements from the HHS Secretary's National Interoperability Standards (HIPAA transactions, Consolidated Health Informatics, Health Information Technology Standards Panel, and others) is related to the data elements' use cases and the standards from which they come. This site promotes understandable health information exchange and the uniformity of data used for health research and decision-making.""