Questione giuridica chiave
Whether the cantonal court wrongly declared the insured person's filing inadmissible for lack of a prior formal decision by the insurer.
Decisione estratta
The cantonal court correctly held that, without a formal decision on benefits, there was no litigable subject matter before it.
Motivazione estratta
In administrative judicial proceedings, courts may review only legal relationships on which the competent authority has previously ruled by decision. The insurer's letter to the doctor was not addressed to the insured person, lacked the formal attributes of a decision, and had no independent legal effect.