We took our son to an emergency room visit 2 1/2 years ago. The hospital was in network and we had insurance. It was a simple case of croup, we were out in a fe

We took our son to an emergency room visit 2 1/2 years ago. The hospital was in network and we had insurance. It was a simple case of croup, we were out in a few hours. We just got a bill last month for $300. This was on top of 3 other bills we have already paid over the years for the same visit. The insurance company said they only knew about it a few days before us. So it was a surprise to them too. But by nature of their agreement with the hospital, they were not allowed to fight it. I still wonder how many more bills we can expect.