Anyone ever re-appeal a health insurance successfully?

My insurance company (Aetna) denied an appeal regarding coverage for a fetal echocardiogram. Their reasoning is I don't meet their criteria. One of their criterium is the child in utero having a sibling with a congenital heart defect. Both DD and DS do. I guess that $100k they paid for an ICU stay following a $30k cardiothoracic surgery for DS last year isn't proof enough. Oh and he has had like 15 echoes since birth.

This just brought me instantly to tears. They seriously couldn't just look briefly through my previous claims to see if maybe there was some evidence that I met the criteria??

I am hopefully getting a letter from my OB practice to back up my assertion and win my second level appeal.