In general I think the distinction between physical, neurological and psychological is peculiar. It suggests that the mind is not physical but a metaphysical entity that can be be analysed separately from the body and vice versa.
My experience with both mental illness and physical disease is that a systemic perspective is important if we are to avoid fixating on finding a specific diagnosis and instead focus on quality of life.
The mind, at least from our perspective, does not operate like any physical thing. So until neurobiology can explain the psychological phenomena, we need to make the distinction.
My experience with both mental illness and physical disease is that a systemic perspective is important if we are to avoid fixating on finding a specific diagnosis and instead focus on quality of life.