NIST servers will be undergoing maintenance from approximately 6pm EDT on Friday, October 20, 2023, through Monday, October 23, 2023 at 9am EDT. The RTMMS may be unavailable during this maintenance period.

Welcome to the Rosetta Terminology Mapping Management System. You are reminded that this system is not a substitute for published IEEE Health Informatics Device Interoperability standards. RTMMS is a tool to aid in the implementation of these standards. Implementors should always obtain and consult the published standards.