This is going to depend on your insurance.
Most don't cover 100% after the deductible is met.
Like mine is 80% coverage after, so after I meet the deductible, I'm required to pay 20% of whatever the charges are after the deductible.
They should have spelled it out for you more clearly.
For me, if the cost of a procedure is say, 10,000, and my individual deductible is 1000, then I'd be responsible for the 1000, then 20% of 9000 or 1800. So my total out of pocket would be 2800. Everything for the rest of the year now will be at the 20% of the total since I met the deductible. Some insurances have a "Max out of pocket" where you don't pay for anything after that max. Would be worth talking to your insurance company to find out exactly what your cut offs are and what you can expect after meeting them.