Hi there I understand your concern...Stones that are 7 mm and larger are unlikely to pass spontaneously and require some type of surgical procedures like lithotripsy,
Ureteroscopy,
Percutaneous nephrostolithotomy...and cost depends upon hospitals and doctors charges... I would suggest you to ask these questions to your treating doctors they will help you.
Answered2016-12-23 07:19:45
Let others know if this answer was helpful