I have Aetna POS II also and went on their website and printed out their specific requirements. Then I brought it to my doctors. There was no denying or monkeying around with what was required by everyone
I have the choice II plan and only need to do 3 mos. of a documented diet. But really... use their website, its a great resource. Also...CALL THEM!!! Get the tellers name every time you call so you have someone to contact later or document that you have requested information.
Good luck
Deb