Questione giuridica chiave
Whether the cantonal remand judgment was a partial decision or an interlocutory decision subject to immediate appeal.
Decisione estratta
The judgment was interlocutory because it contained no operative award against the insurer and only remanded for further instruction and a new decision.
Motivazione estratta
A decision that merely annuls and remands the case is not a partial decision under Art. 91 lit. a LTF; it falls under Art. 93 LTF.