Thank you all for the advice/insight, I knew I would get good advice here. I think there were a few things that were not clear in my first post.

We have do have health insurance. The $400 is our deductible, co-pay and the 10% of the X-rays/Ultrasound. If he had been admitted Friday night, the ER co-pay would have been waived because we would be billed through the hospital.

I guess the correct diagnosis did end up being a little off the wall. The doctors at the second hospital said they weren't sure what they would find and they were a little surprised to find the abscesses. Chris is in good health, doesn't have any known risk factors and doesn't have a long history of stomach ailments. He does get constipation/stomach pains with a lot of stress, but he is generally healthy.

I don't know if you would consider the first doctor negligent. On one hand he did do several tests before he decided on the Hepatitis diagnosis. On the other hand he stopped short of doing the one test to properly diagnose the problem. Chris was in the worst pain I have ever seen that night, it was worse than when his appendix ruptured. From what his new team of doctors has told us, there is no reason to believe this will have long term effects on him. There is chance it is caused by Crohn's disease, but that isn't anything the ER doctor could diagnose himself.

I honestly can accept the $400 bill, it stinks but it is the way it goes. Right now I think filing a complaint may be the right avenue. Personally, I don't want to sue the doctor because it is really without merit. I just don't want to pay the bill without first saying I am not happy with the quality of care.