On 4/25/16 my son got cut on eye brow to get a 5 s...

On 4/25/16 my son got cut on eye brow to get a 5 stick and doctor toll comeback 5 days to remove the stick. After the bill charges $780.00
i have insurance but i still need to pay $231.00
I called in to ask why coast too much for remove stick they said it charge on Emergency .
It over such money .