did you get a refferal? if yes, call your case/policy manager from the Insurance company (you should have one). Call him/her and find out if it will cover or not. The people in Boston might need to get in touch with him/her as well to get the approval. If they give you a hard time, ask to speak with a supervisor or whoever can make final decisions, then explain your situation and if he/she is not helpful ask them to tell them specific reasons why they won't cover. if they say it is in your insert/insurance info package, ask him/her where exactly does it say that. Then read up and see if you can appeal it.