Insurance companies are odd animals, with policy decisions that are unpredictable. Many folks here have been denied coverage from BCBS, while others have won coverage.
This link may have been posted before, but I just wanted to remind folks that have started their frustrating journey of appealing to read this 18 page document. It summarizes BCBS's official stance on ADR:
http://www.bcbs.com/tec/vol20/20_01.html
It's dated April 2005, so there may be some minor changes since then. All the while, some people have been successful getting coverage -- as we have seen considerable differences from state to state. Apparently, each regional (or state) organization has some latitude to make their own policy decisions. Great from some people -- but not for others. Makes you wonder about moving in with your cousins in another state?!
Any way, read the doc carefully if you plan to take them head on, and feel free to network among members here.
PS: You need a PDF reader to open the document.