Surgery and procedures CPT 31256 Missouri Outpatient

Sinus surgery, maxillary cost in Missouri

In Missouri, 9 hospitals publish a cash price for endoscopic sinus surgery: opening the maxillary (cheek) sinus: from $253.44 to $17,352.59, with a median of $9,042.44. The lowest price is at Children's Mercy Hospital (Kansas City). The highest price is 68.5× 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 23, 2026.

Lowest$253.44Children's Mercy Hospital
Median$9,042.44half pay less
Highest$17,352.59in Missouri
Lowest saves$8,789.00vs the median

Hospitals in Missouri, cheapest first

HospitalCash price List priceFile date
Children's Mercy Hospital lowest Kansas City · Kansas City, MO-KS NASAL ENDO W MAXILL ANTROSTOMY $253.44 $528.00 —
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Mercy Hospital Southeast Cape Girardeau · Cape Girardeau, MO-IL Nasal/Sinus Endoscopy W/Maxillary Antrostomy $929.25 $1,239.00 Jun 12, 2026
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Curators of the University of Missouri Columbia · Columbia, MO NASAL/SINUS ENDOSCOPY, SURGICAL, W/ MAXILLARY ANTROSTOMY-EAC $2,926.80 $4,878.00 Dec 15, 2025
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St Joseph Medical Center Kansas City · Kansas City, MO-KS EXPLORATION MAXILLARY SINUS $3,716.00 $2,633.22 Mar 17, 2026
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Mercy Hospital South Saint Louis · St. Louis, MO-IL Nasal/Sinus Endoscopy W/Maxillary Antrostomy $9,042.44 $13,911.45 —
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Mercy Hospital Washington Washington · St. Louis, MO-IL Nasal/Sinus Endoscopy W/Maxillary Antrostomy $12,855.43 $19,777.59 —
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Mercy Hospital St Louis Saint Louis · St. Louis, MO-IL Nasal/Sinus Endoscopy W/Maxillary Antrostomy $14,582.31 $22,434.33 —
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Mercy Hospital Springfield Springfield · Springfield, MO Nasal/Sinus Endoscopy W/Maxillary Antrostomy $17,352.59 $26,696.29 —
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Mercy Hospital Springfield Ozark · Springfield, MO Nasal/Sinus Endoscopy W/Maxillary Antrostomy $17,352.59 $26,696.29 —
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By metro area

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

Metro areaHospitals LowestMedian
St. Louis, MO-IL 3 $9,042.44 $12,855.43
Kansas City, MO-KS 2 $253.44 $1,984.72
Springfield, MO 2 $17,352.59 $17,352.59
Cape Girardeau, MO-IL 1 $929.25 $929.25
Columbia, MO 1 $2,926.80 $2,926.80

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.