Kernrechtsfrage
Whether the medical basis was sufficient to assess the insured person's work capacity, including possible psychogenic limitations.
Extrahierter Entscheid
The record was insufficient; an interdisciplinary medical assessment, including proper psychiatric evaluation, was required.
Extrahierte Begründung
The existing psychiatric assessment was incomplete, not clearly causal, and hampered by language difficulties; somatic findings were also internally inconsistent. Further clarification was necessary under the investigative principle.