Release Notes for IMDRF Terminology Release Number 2026. Release Number 2026 incorporates the Change Requests received for the 2025 maintenance cycle. Overview of changes: Annex A: Added 0 new terms and modified 43 terms (A0103, A0107, A020501, A020502, A020505, A03, A030205, A0402, A040606, A040611, A0407, A0504, A050406, A0510, A070909, A070910, A071209, A072102, A072201, A072202, A090209, A090404, A090405, A090804, A1003, A11, A140506, A140507, A140508, A1415, A160101, A160201, A17, A180101, A21, A2101, A210101, A210102, A210103, A210107, A24, A2501, A27). Annex B: Added 2 new terms (B33, B34) and modified 7 terms (B05, B16, B17, B20, B21, B23, B31) and retired 2 terms (B12, B13) Annex C: Added 2 new terms (C1901, C1902) and modified 12 terms (C010604, C0107, C0210, C0403, C0501, C0602, C1201, C1403, C1404, C1701, C20, C22) Annex D: Added 0 new terms and modified 5 terms (D0107, D0108, D15, D16, D17) and retired 2 terms (D1401, D1402) Annex E: Added 28 new terms (E012210, E012211, E0145, E0146, E0210, E0524, E0525, E0526, E0630, E0762, E0861, E0862, E1037, E1038, E1039, E1040, E1216, E1217, E1421, E1653, E1730, E1731, E2133, E2134, E2135, E2136, E2353, E2354) and modified 85 terms (E0110, E0111, E0119, E0139, E0142, E02, E0206, E0310, E0402, E0404, E0405, E050102, E050305, E0512, E051501, E0518, E0521, E0618, E0623, E0713, E0714, E0752, E0756, E0757, E0844, E0858, E0859, E0906, E0908, E0912, E0913, E1008, E1029, E1033, E1107, E120501, E1207, E1311, E1317, E1401, E1417, E151202, E161201, E161202, E161605, E1625, E1626, E1635, E1638, E1642, E1644, E1648, E1649, E1650, E1651, E1652, E170405, E170406, E171501, E1725, E1728, E1729, E1804, E1805, E1906, E2015, E2016, E2102, E2111, E2123, E2125, E2126, E2127, E2128, E2129, E2130, E2206, E233802, E2343, E2344, E2345, E2347, E2348, E2352, E2402). Annex F: Added 4 new terms (F0104, F190701, F230101, F230102) and modified 13 terms (F0101, F05, F07, F15, F1910, F2201, F2308, F2601, F27, F28, F29, F30, F31) Annex G: Added 4 new terms (G0403402, G0403403, G0413504, G04143) and modified 6 terms (G0405211, G04068, G04097, G07001, G07002, G07003) For a complete list of comments and IMDRF decisions, please refer to the Change Request Log published along with this release. The deadline for Change Requests for next year's maintenance cycle is 1 September 2026. For questions on this release, please contact IMDRF AET maintenance Chair at Katie.Burns@health.gov.au