The pre-existing condition exclusion clause has a time limit. The condition is not covered for a certain period of time. Check your insurance policy/coverage information to read about the pre-existing condition exclusion. If it is not clear, call the insurance company and ask specifically when the condition will be covered--the exact date.

If, for example, the exclusion is for 6 months, then the condition would now be covered since the insurance began in April.

I wonder if the visit would be able to be covered under the charity program if the insurance doesn't pay.