Hey Trix
Well, I think most of us are under neuros and rheumatologists.. so at a guess that's how it's classified "industrially"... (and pain etc.. but pain is the symptom not the cause).
I think long term RSD is a CNS disease - as the "damage" is to the brain, spinal cord and nerve fibres.. but to start off it's almost something endocronological (that's the bit with the ANS/ SNS isn't it? we vaguely studied it acouple of years ago). There is plenty of research that shows damage being document in the CNS. (Roz... fountain of all knowledge, is far more expert than I am with the research

)
I know that I was told my RSD had gone from SNS to CNS and as a result it was harder to treat and I developed central pain syndrome on top of the RSD.
I suppose though it's chicken and egg.. because although RSD Damages the CNS it might not be responsible for the development of it... will have a think...
Frogga xxxxxxxxxx