My feline had a checkup in 7/10 and passed with flying colors. In early November of 2010 I took him to the vet because of an increase in fluid intake. A blood panel and urine culture was done to find out what was going on. Both claims were denied because of pre-existing condition. I was told that because the increase of fluid intake was mentioned in the vet's notes that the claim processors labeled it as kidney failure and denied the claim as pre-existing. I don't know how they could diagnose when my vet was still trying to rule out things that could be wrong. An accurate diagnosis on his part had yet to be made.