For one thing when you filled out your application and did not
list your knee injury which would have excluded you
from coverage makes it insurance fraud. Also since you
already went to the Dr before you got coverage
there is a record of the preexisting condition so its not likely
the insurance will cover it. I know it sucks but you are going to
have to try a different means of getting it looked at.Insurance
companies will do everything in their power to not pay your
claim.They investigate relentlessly especially for
a high priced MRI and then after you have incurred huge bills
will deny your claim I wish you luck and a speedy recovery.