<s>[INST] Hi..am a resident of gurgaon aged 35years. I am looking for surgery for kidney stone removal...the stone size is around 18mm and is stuck in the duct leading to extreme pain. Please note am a diabetic with fluctuating sugar levels...since my medical policy does not cover the ailment as of now, am looking for an economical solution...would appreciate if i could get an approx price quote too [/INST] Hey. Welcome to Chat Doctor. Let me first inform you that, if the stone size is less than 10 mm, then definitely there is a chance to flush it out from our body by specific medicines. In your case, the stone size is 18 mm, and also it is stuck in the ureter as informed by you, which is giving you severe pain. In my opinion, you can go ahead for surgery. Do not worry it will be not an open surgery. Lithotripsy is done in such cases, which is minimal invasive surgery. Hope I have answered your question. If you have any other questions, then I will be happy to answer it. Wish you good health. Take good care of yourself. Warm Regards. </s>