Surgery and procedures CPT 42821 Illinois Outpatient

Tonsil and adenoid removal, 12+ cost in Illinois

In Illinois, 13 hospitals publish a cash price for tonsil and adenoid removal, age 12 or older: from $429.45 to $24,770.23, with a median of $4,091.49. The lowest price is at Deaconess Illinois Crossroads (Mount Vernon) and 2 other hospitals. The highest price is 57.7× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 42821. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.

Lowest$429.45Deaconess Illinois Crossroads + 2 more
Median$4,091.49half pay less
Highest$24,770.23in Illinois
Lowest saves$3,662.04vs the median

Hospitals in Illinois, cheapest first

HospitalCash price List priceFile date
Deaconess Illinois Crossroads lowest Mount Vernon · Mount Vernon, IL PR TONSILLECTOMY & ADENOIDECTOMY AGE 12/> $429.45 $1,227.00 Feb 3, 2026
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Deaconess Illinois Union County Hospital lowest Anna · Anna, IL PR TONSILLECTOMY & ADENOIDECTOMY AGE 12/> $429.45 $1,227.00 Feb 3, 2026
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Heartland Regional Medical Center lowest Marion · Marion-Herrin, IL PR TONSILLECTOMY & ADENOIDECTOMY AGE 12/> $429.45 $1,227.00 Feb 3, 2026
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Trinity Medical Center Rock Island · Davenport-Moline-Rock Island, IA-IL PR REMOVE TONSILS/ADENOIDS,12+ Y/O $746.40 $933.00 Jan 28, 2026
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Mercy Medical Center Aurora · Chicago-Naperville-Elgin, IL-IN Remove tonsils and adenoids - 42821 - OR36042821 $3,535.00 $21,652.00 Sep 1, 2026
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Saint Francis Hospital Evanston · Chicago-Naperville-Elgin, IL-IN Remove tonsils and adenoids $3,535.00 $13,126.00 Sep 1, 2026
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Riverside Medical Center Kankakee · Kankakee, IL REMOVAL OF TONSILS AND ADENOID GLANDS (12 YEARS OR OLDER) $4,091.49 $15,370.00 —
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Northwestern Medicine Central DuPage Hospital Winfield · Chicago-Naperville-Elgin, IL-IN HB Tonsillectomy & Adenoidectomy Age 12/> $13,902.81 $19,861.16 Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest · Chicago-Naperville-Elgin, IL-IN HB Tonsillectomy & Adenoidectomy Age 12/> $14,234.07 $20,334.39 Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb · Chicago-Naperville-Elgin, IL-IN HB Tonsillectomy & Adenoidectomy Age 12/> $15,051.25 $21,501.79 Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva · Chicago-Naperville-Elgin, IL-IN HB Tonsillectomy & Adenoidectomy Age 12/> $15,701.94 $22,431.34 Apr 1, 2026
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Palos Community Hospital Palos Heights · Chicago-Naperville-Elgin, IL-IN HB Tonsillectomy & Adenoidectomy Age 12/> $19,170.79 $27,386.84 Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry · Chicago-Naperville-Elgin, IL-IN HB Tonsillectomy & Adenoidectomy Age 12/> $24,770.23 $35,386.04 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 $3,535.00 $14,642.66
Anna, IL 1 $429.45 $429.45
Davenport-Moline-Rock Island, IA-IL 1 $746.40 $746.40
Kankakee, IL 1 $4,091.49 $4,091.49
Marion-Herrin, IL 1 $429.45 $429.45
Mount Vernon, IL 1 $429.45 $429.45

What it is

This is surgery to remove both the tonsils and the adenoids in someone age 12 or older. It is done for repeated infections or for snoring and breathing problems during sleep caused by enlarged tonsils and adenoids.

What the price covers

The facility price covers the operating room and recovery. The surgeon's fee and anesthesia are usually billed separately.

Tonsil and adenoid removal, age 12 or older in other states

Median cash price across the state's hospitals.