Getting Insurance After Surgery

I have been considering wls for while. My husband is self employed and we have not had insurance for a while. We have finally caught up on everything and so I went through the very long process to apply for insurance through BCBS of TX for us and our 4 kids. I knew they would not cover the wls and planned to self pay but wanted to have the insurance in case of complications. Once everything was submitted to underwriting I started the process for gastric sleeve, met with the Dr and set a date for July 31st. Then the next week was notified by insurance that I was denied coverage because of the meds I take for water retention. It does not make sense to me why they denied me but my agent said I can appeal the decision and re-apply. I have decided to just wait until after surgery and trust God and move forward my plans for surgery without insurance. Does anyone know how long I will need to wait after surgery until it would be good for me to re-apply for insurance?