Surgery and procedures CPT 31255 Illinois Outpatient

Sinus surgery, full ethmoid cost in Illinois

In Illinois, 12 hospitals publish a cash price for endoscopic sinus surgery: full ethmoid sinus opening: from $747.60 to $45,469.83, with a median of $18,479.88. The lowest price is at Deaconess Illinois Crossroads (Mount Vernon) and 2 other hospitals. The highest price is 60.8× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 31255. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.

Lowest$747.60Deaconess Illinois Crossroads + 2 more
Median$18,479.88half pay less
Highest$45,469.83in Illinois
Lowest saves$17,732.28vs the median

Hospitals in Illinois, cheapest first

HospitalCash price List priceFile date
Deaconess Illinois Crossroads lowest Mount Vernon · Mount Vernon, IL PR NASAL/SINUS NDSC W/TOTAL ETHOIDECTOMY $747.60 $2,136.00 Feb 3, 2026
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Deaconess Illinois Union County Hospital lowest Anna · Anna, IL PR NASAL/SINUS NDSC W/TOTAL ETHOIDECTOMY $747.60 $2,136.00 Feb 3, 2026
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Heartland Regional Medical Center lowest Marion · Marion-Herrin, IL PR NASAL/SINUS NDSC W/TOTAL ETHOIDECTOMY $747.60 $2,136.00 Feb 3, 2026
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Trinity Medical Center Rock Island · Davenport-Moline-Rock Island, IA-IL PR NASAL/SINUS NDSC W/TOTAL ETHOIDECTOMY $808.80 $1,011.00 Jan 28, 2026
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Mercy Medical Center Aurora · Chicago-Naperville-Elgin, IL-IN Nsl/sins ndsc w/tot ethmdct $7,525.00 $28,587.00 Sep 1, 2026
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Saint Francis Hospital Evanston · Chicago-Naperville-Elgin, IL-IN NASALSINUS ENDOSCOPY SURGICAL $7,525.00 $9,720.00 Sep 1, 2026
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Palos Community Hospital Palos Heights · Chicago-Naperville-Elgin, IL-IN Nasal/Sinus Ndsc W/Total Ethoidectomy $29,434.75 $42,049.64 Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva · Chicago-Naperville-Elgin, IL-IN Nasal/Sinus Ndsc W/Total Ethoidectomy $30,192.25 $43,131.79 Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb · Chicago-Naperville-Elgin, IL-IN Nasal/Sinus Ndsc W/Total Ethoidectomy $33,382.15 $47,688.79 Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry · Chicago-Naperville-Elgin, IL-IN Nasal/Sinus Ndsc W/Total Ethoidectomy $43,276.43 $61,823.47 Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield · Chicago-Naperville-Elgin, IL-IN Nasal/Sinus Ndsc W/Total Ethoidectomy $44,043.97 $62,919.96 Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest · Chicago-Naperville-Elgin, IL-IN Nasal/Sinus Ndsc W/Total Ethoidectomy $45,469.83 $64,956.90 Apr 1, 2026
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By metro area

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

Metro areaHospitals LowestMedian
Chicago-Naperville-Elgin, IL-IN 8 $7,525.00 $31,787.20
Anna, IL 1 $747.60 $747.60
Davenport-Moline-Rock Island, IA-IL 1 $808.80 $808.80
Marion-Herrin, IL 1 $747.60 $747.60
Mount Vernon, IL 1 $747.60 $747.60

What it is

This code covers endoscopic surgery through the nose to open all of the ethmoid sinuses, between the eyes.

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: full ethmoid sinus opening in other states

Median cash price across the state's hospitals.