Kernrechtsfrage
Whether the medical record was sufficiently clarified to decide the pension claim.
Extrahierter Entscheid
The file remained insufficiently clear under the low-threshold doubt standard, so further judicial medical investigation was justified.
Extrahierte Begründung
The private insurer's rheumatology report alone was not fully conclusive; there were remaining doubts due to inconsistencies, limited depth on medical issues, and contrary prior findings. The court therefore ordered a court expert opinion.