In my policy details it says ,
The insurance shall apply:
1. blah blah
2. blah blah
3. When moving in Switzerland, the Principality of Liechtenstein or the enclaves of Büsingen and Campione, during the move and at the new place of residence. Zurich
(My insurance provider) must be notified of any change of residence within 30 days. It shall be entitled to adjust the premium in line with the new circumstances.