Surgery and procedures CPT 31256 Montana Outpatient

Sinus surgery, maxillary cost in Montana

In Montana, 3 hospitals publish a cash price for endoscopic sinus surgery: opening the maxillary (cheek) sinus: from $538.40 to $780.82, with a median of $538.40. The lowest price is at Big Sky Medical Center (Big Sky) and 1 other hospital. The highest price is 1.5× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 31256. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 28, 2026. See them on a map

Lowest$538.40Big Sky Medical Center + 1 more
Median$538.40half pay less
Highest$780.82in Montana
Lowest saves$0.00vs the median

Hospitals in Montana, cheapest first

HospitalCash price List priceFile date
Big Sky Medical Center lowest Big Sky · Bozeman, MT PR NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY $538.40 $673.00 Jan 15, 2026
source file
Deaconess Regional Medical Center lowest Bozeman · Bozeman, MT PR NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY $538.40 $673.00 Jan 16, 2026
source file
Sidney Health Center Sidney · Sidney, MT NASAL SINUS ENDOSCOPY SURGICAL WMAXILLARY ANTROSTOMY $780.82 $1,261.00 Apr 30, 2026
source file

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro areaHospitals LowestMedian
Bozeman, MT 2 $538.40 $538.40
Sidney, MT 1 $780.82 $780.82

What it is

This code covers endoscopic surgery through the nose to widen the natural opening of the maxillary sinus behind the cheek.

What the price covers

The hospital price usually covers the operating room, recovery and supplies. The surgeon and anesthesia usually bill separately.

Endoscopic sinus surgery: opening the maxillary (cheek) sinus in other states

Median cash price across the state's hospitals.