I called when I was having troubles awhile ago and asked about the Gastric Sleeve and they said they do cover it, as far as revision not sure! Yes they covered my band, twice actually. I had problems one month out my first lap band, and they covered putting it back in 6 months later, the sleeve was not even an option at that point. I am just anxious, the surgeon says he is going to try and rush things along, but the insurance lady that submits everything, says it will be atleast a couple of days because she just got back from vacation.