When creating a central repository for all data elements in a master patient index database, this resource is known as?

A central repository for all data elements in a master patient index database is known as a data dictionary. A data dictionary serves as a comprehensive reference that defines all data elements, their characteristics, relationships, and constraints within the system. It provides essential information about what data is stored, including definitions, formats, allowable values, and the context in which the data is applicable. This kind of structured information is crucial for ensuring data integrity, consistency, and standardization within a database.

In the context of a master patient index, a data dictionary would allow users and systems to understand what each data element represents, fostering better communication and clarity among healthcare professionals and IT staff. It essentially acts as a roadmap for how data is organized and managed within the index, which is vital for effective data governance and management practices in healthcare settings.