Release Notes for IMDRF Terminology Edition 4.1 Edition 4.1 is a minor update to improve usability of the IMDRF Terminology. There are no changes to any terms, codes, and definitions since Edition 4.0 published on 20 April 2020 with the exception of two editorial corrections indicated below. Overview of changes: 1. Addition of Code Hierarchy information to all Annexes. 2. Addition of Status / Status Description information to Annexes A, E, and G, to indicate major changes made since Edition 3.0 and to clarify that some level 1 terms should not be used for coding. 3. Addition of a Mapping Table to Annex E. The content of the mapping is unchanged. 4. Correction of definition of Display to reference the correct code for Touchscreen 5. Change of term G04040 to Cusp/Leaflet and inactivation of term G04081 due to duplication of "Leaflet." For questions on this release, please contact IMDRF AE WG Chair at .