this is how it 'goes' developing policies all over the medical universe:

http://www.aetna.com/products/rxmedi...ivig_2007.html

Under 'precertification criteria', CIDP is listed LAST, as it's being identified as a 'condition' of it's own. Before that it was a combo listing of GBS/CIDP putting it hier up the list so to speak.

Looks like Parts B and D conflict each other in many ways. Wish I could be more helpful...If you let me know thru PM which state/specific plan you are in [I need no more than that] I might be able to cull out some area policies and procedures...might, no guarantees.

Don't give up! IG living magazine has a staff that's been very helpful to me as well. It's a good resource with active participants. - j