In collaboration with TISA and Amsterdam Group the reference document linked in the Supporting documentation for current version "Safety related message sets – Selection of DATEX II Codes, DENM Event Types, TPEG2-TEC Causes and TMC Events for EC high level Categories" have been updated and released on 14 Feb 2017 (page access restricted to registered users, please register and subscribe to newsletter to access all documentation and get updated about DATEX).
See also the news on TISA website