How Much Does an ER Visit for a Kidney Stone Cost?

An emergency-room visit for a kidney stone is typically billed $2,000 to $9,000. Most of that is the CT scan used to confirm the stone, plus IV pain medication and fluids, labs, and the ER facility and physician fees. If the stone needs a procedure to remove it, that is billed separately. With insurance you owe your ER share up to your out-of-pocket maximum.

A CT scan is the standard way to confirm a kidney stone and see its size and location, and a hospital CT is billed at a high rate (often $1,000 to $3,000 on its own). That imaging charge, combined with the ER facility fee and IV treatment for the pain, is what makes a kidney-stone ER visit expensive even though the treatment itself is often just fluids and pain control.

Many stones pass on their own, but larger ones may need a procedure such as ureteroscopy or shock-wave lithotripsy, billed separately at roughly $7,000 to $15,000+ (far less after insurance or a self-pay discount). Ask whether watchful waiting is an option first, and see our kidney stone treatment cost guide for the procedure side.

Yes. Severe kidney-stone pain is a legitimate emergency, so it is covered under the prudent layperson standard. You owe your ER copay or coinsurance and deductible up to your out-of-pocket maximum. A denial or downcoded visit can be appealed.

Get an itemized bill and check the ER visit level and the CT charge. Uninsured patients should ask for the self-pay discount and hospital financial assistance. For any follow-up procedure, ask for the cash price and choose a lower-cost site of care. If the bill looks inflated or unaffordable, have it reviewed. CareRoute Bill Defense reviews and negotiates these bills with no fee unless we save you money.