@hvogt May you did not understand my question or I explain myself in a bad way.
I know that SERA.11015 regards to Interception. But again, in ICAO Annex 3.8 you can find SERA.11015, but you can't find ICAO Annex 2 Appendix 2 Interception of Civil Aircraft on EASA No 923. Does that makes any sense?
ICAO defines the procedures for interception in Appendix 2 of Annex 2 but EASA don't have those procedures in 923. In Appendix 2 of EASA 923 you have Ballons instead of Interception procedures.