Kernrechtsfrage
Whether the insured person was entitled to a higher invalidity pension after the alleged deterioration.
Extrahierter Entscheid
The case could not be decided on the existing file; the matter had to be remitted for a new medical assessment and reconsideration of the objection.
Extrahierte Begründung
A material change in health could not be established, but the original pension award rested on an unexplained work-capacity assessment. Because a comparison between the original and current work capacity was impossible, the decisive question became the work capacity at the time of the revision decision, which required expert evidence.