I guess I am concerned that we head increasingly for a situation where various sub-categories are created in advance of any objective testing that definitely identifies cohorts of patients and without any specific treatment to offer said patients.
Here's a background quotation:
The World Health Organization (WHO) classifies CFS/ME as a
neurological illness (G93.3), and some members of the Guideline Development
Group (GDG) felt that, until research further identifies its aetiology and
pathogenesis, the guideline should recognise this classification. Others felt that
to do so did not reflect the nature of the illness, and risked restricting research
into the causes, mechanisms and future treatments for CFS/ME.
neurological illness (G93.3), and some members of the Guideline Development
Group (GDG) felt that, until research further identifies its aetiology and
pathogenesis, the guideline should recognise this classification. Others felt that
to do so did not reflect the nature of the illness, and risked restricting research
into the causes, mechanisms and future treatments for CFS/ME.