The tax agency fund of Hardin County collected $1,000,000 for a school district, $5,000,000 for the county General Fund, and $500,000 for a town located in the County.
Amongst other conditions, a renal ultrasound scan can detect kidney stones, cysts, tumours, congenital abnormalities of the renal tract (these are abnormalities that have been present from birth), problems of the prostate, effects of infection and trauma of the kidneys and renal tract.
You would need to have an imaging study of your kidney to detect a bruise (like a CT scan or an ultrasound). I am not suggesting you do this because even if there is a bruise to the kidney (and I doubt there is) there would be no special intervention if pain was the only problem.