Lab tests CPT 84481 Illinois Outpatient

Free T3 test cost in Illinois

In Illinois, 113 hospitals publish a cash price for free T3 thyroid hormone test: from $13.43 to $514.98, with a median of $121.50. The lowest price is at Roseland Community Hospital (Chicago). The highest price is 38.3× the lowest.

  • The median here, $121.50, is 26% above the US median of $96.25.
  • That is 7.2× Medicare's 2026 national rate for the same service ($16.94).
  • Illinois ranks 37th of 51 states by median, cheapest first.
  • 28 of 113 hospitals list a cash price equal to their full list price, with no self-pay discount.

Illinois law (Hospital Uninsured Patient Discount Act, 210 ILCS 89): an uninsured Illinois resident with family income up to 600% of the federal poverty level (300% at rural and critical access hospitals) can apply for a discount that brings the bill down to about 135% of the hospital's cost; up to 200% (125% at rural hospitals) medically necessary care is free. A hospital may collect no more than 25% of family income in 12 months. Ask the billing office for the application. Other states' laws.

Outpatient cash prices, one line per hospital — its lowest listed price for code 84481. Prices for both sides of the body and inpatient prices are not mixed in. Collected Nov 9, 2026. See them on a map

Lowest$13.43Roseland Community Hospital
Median$121.50half of hospitals charge less
Highest$514.98in Illinois
Lowest saves$108.07vs the median

Hospitals in Illinois, cheapest first

HospitalCash priceList priceFile date
Roseland Community Hospital lowest Chicago · Chicago-Naperville-Elgin, IL-IN Thyroid hormone, T3 measurement, free $13.43 $42.35 Jul 1, 2026
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Uchicago Medicine AdventHealth Bolingbrook Bolingbrook · Chicago-Naperville-Elgin, IL-IN HC T3 FREE $14.75 $59.00 Apr 1, 2026
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Uchicago Medicine AdventHealth Glenoaks Glendale Heights · Chicago-Naperville-Elgin, IL-IN HC T3, FREE - ARUP $14.75 $59.00 Apr 1, 2026
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Uchicago Medicine AdventHealth Hinsdale Hinsdale · Chicago-Naperville-Elgin, IL-IN HC T3, FREE - ARUP $14.75 $59.00 Apr 1, 2026
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Uchicago Medicine AdventHealth La Grange La Grange · Chicago-Naperville-Elgin, IL-IN HC T3 FREE $14.75 $59.00 Apr 1, 2026
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Mercy Medical Center Aurora · Chicago-Naperville-Elgin, IL-IN T3(TRI-IODOTHYRONINE), FREE $16.00 $454.00 Sep 1, 2026
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Saint Francis Hospital Evanston · Chicago-Naperville-Elgin, IL-IN HC TRIIODOTHYRONINE FREE ASSAY (FT-3) $16.00 $99.00 Sep 1, 2026
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Saint Joseph Medical Center - Joliet Joliet · Chicago-Naperville-Elgin, IL-IN T3(TRI-IODOTHYRONINE), FREE $16.00 $589.00 Sep 1, 2026
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FHN Memorial Hospital Freeport · Freeport, IL Thyroid hormone, T3 measurement, free $24.80 $31.00 Jan 22, 2026
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Northwestern Lake Forest Hospital Lake Forest · Chicago-Naperville-Elgin, IL-IN HB Ref Free T3 by Dialysis $27.30 $39.00 Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry · Chicago-Naperville-Elgin, IL-IN HB Ref Free T3 by Dialysis $27.30 $39.00 Apr 1, 2026
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John H. Stroger, Jr. Hospital Chicago · Chicago-Naperville-Elgin, IL-IN TRIIODOTHYRONINE (T-3) FREE $30.10 $43.00 Apr 1, 2026
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Presence Saint Joseph Hospital - Chicago Chicago · Chicago-Naperville-Elgin, IL-IN HC T3, FREE TRIIODOTHYRONINE, SERUM $32.67 $99.00 Jan 1, 2026
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MercyOne Genesis Aledo Medical Center Aledo · Davenport-Moline-Rock Island, IA-IL Triiodothyronine Free-Sendout $39.00 $65.00 Mar 31, 2026
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Community First Medical Center Chicago · Chicago-Naperville-Elgin, IL-IN Thyroid hormone, T3 measurement, free $39.75 $79.50 Apr 1, 2026
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Carle BroMenn Medical Center Normal · Bloomington, IL Triiodothyronine T3, Free Ref $51.00 $51.00 Apr 15, 2026
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MercyOne Genesis Silvis Medical Center Silvis · Davenport-Moline-Rock Island, IA-IL Triiodothyronine Free-Sendout $51.60 $86.00 Mar 31, 2026
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Gottlieb Memorial Hospital Melrose Park · Chicago-Naperville-Elgin, IL-IN Triiodothyronine T3 Free $51.87 $273.00 Mar 31, 2026
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MacNeal Hospital Berwyn · Chicago-Naperville-Elgin, IL-IN Triiodothyronine T3 Free $51.87 $273.00 Mar 31, 2026
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NorthShore University HealthSystems Glenbrook Hospital Glenview · Chicago-Naperville-Elgin, IL-IN R T3 Free by Dialysis Lc-Ms $52.00 $80.00 Jan 1, 2025
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NorthShore University HealthSystems Skokie Hospital Skokie · Chicago-Naperville-Elgin, IL-IN R T3 Free by Dialysis Lc-Ms $52.00 $80.00 Jan 1, 2025
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Trinity Rock Island Rock Island · Davenport-Moline-Rock Island, IA-IL HC T3; FREE $61.71 $77.14 Nov 4, 2026
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Loyola University Medical Center Maywood · Chicago-Naperville-Elgin, IL-IN Triiodothyronine T3 Free $62.79 $273.00 Mar 31, 2026
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Carle Eureka Hospital Eureka · Peoria, IL Triiodothyronine T3, Free Ref $68.00 $68.00 Apr 15, 2026
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Ferrell Hospital Community Foundation Eldorado · Eldorado, IL HC FREE T3 $70.50 $94.00 Sep 22, 2026
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The Carle Foundation Hospital Urbana · Champaign-Urbana, IL T3 (Triiodothyronine), Free, S Ref $71.00 $71.00 Apr 15, 2026
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Hoopeston Community Memorial Hospital Hoopeston · Danville, IL Triiodothyronine T3, Free Ref $72.00 $72.00 Apr 15, 2026
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St Johns Hospital of the Hospital Sisters of the Third Order of St Francis Springfield · Springfield, IL HC T3 FREE $72.00 $100.00 Mar 24, 2026
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La Rabida Children's Hospital Chicago · Chicago-Naperville-Elgin, IL-IN FREE T3 $73.63 $73.63 Apr 1, 2026
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Riverside Medical Center Kankakee · Kankakee, IL THYROID HORMONE; T3 MEASUREMENT; FREE $75.87 $285.00 Mar 15, 2026
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Endeavor Health Highland Park Hospital Highland Park · Chicago-Naperville-Elgin, IL-IN HB R T3 FREE BY DIALYSIS LC-MS $80.00 $80.00 Apr 1, 2026
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Northshore University Healthsystem - Evanston Hospital Evanston · Chicago-Naperville-Elgin, IL-IN HB R T3 FREE BY DIALYSIS LC-MS $80.00 $80.00 Apr 1, 2026
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Swedish Covenant Health Chicago · Chicago-Naperville-Elgin, IL-IN HB R T3 FREE BY DIALYSIS LC-MS $80.00 $80.00 Apr 1, 2026
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Hopedale Medical Complex Hopedale · Peoria, IL FREE T3 $84.05 $120.07 Apr 6, 2026
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MC Donough District Hospital Macomb · Macomb, IL T3 Free $84.60 $141.00 Mar 25, 2026
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Advocate Childrens Hospital Oak Lawn Oak Lawn · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Childrens Hospital Park Ridge Park Ridge · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 6, 2026
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Advocate Christ Medical Center Oak Lawn · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Condell Medical Center Libertyville · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Good Samaritan Hospital Downers Grove · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Good Shepherd Hospital Barrington · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Illinois Masonic Medical Center Chicago · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Lutheran General Hospital Park Ridge · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Sherman Hospital Elgin · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate South Suburban Hospital Hazel Crest · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Advocate Trinity Hospital Chicago · Chicago-Naperville-Elgin, IL-IN T3, FREE $85.00 $170.00 Nov 3, 2026
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Sarah Bush Lincoln Health Center Mattoon · Charleston-Mattoon, IL Thyroid hormone, T3 measurement, free $89.00 $89.00 Jun 3, 2026
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St Francis Hospital Sisters of the Third Order of St Francis Litchfield · Litchfield, IL HC T3 FREE $92.16 $128.00 Mar 24, 2026
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Community Hospital of Staunton Staunton · St. Louis, MO-IL FREE T3 $92.80 $185.60 Feb 9, 2026
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Heartland Regional Medical Center Marion · Marion-Herrin, IL HC FREE T3 $92.96 $489.26 Feb 3, 2026
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Humboldt Park Health Chicago · Chicago-Naperville-Elgin, IL-IN Thyroid hormone, T3 measurement, free $94.67 $338.10 Sep 29, 2026
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St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland · St. Louis, MO-IL HC T3 FREE $97.20 $135.00 Mar 24, 2026
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Morrison Community Hospital Morrison · Sterling, IL T3 FREE (FT3) $97.50 $97.50 Mar 13, 2026
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Palos Community Hospital Palos Heights · Chicago-Naperville-Elgin, IL-IN HB Ref Free T3 by Dialysis $107.10 $153.00 Apr 1, 2026
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Crawford Memorial Hospital Robinson · Robinson, IL Triiodothyronine,Free LC $115.20 $144.00 Nov 12, 2025
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St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon · St. Louis, MO-IL HC T3 FREE $119.52 $166.00 Mar 24, 2026
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Morris Hospital Morris · Chicago-Naperville-Elgin, IL-IN Thyroid hormone, T3 measurement, free $121.50 $505.00 Oct 27, 2026
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Northwestern Medicine Central DuPage Hospital Winfield · Chicago-Naperville-Elgin, IL-IN HB Ref Triiodothyronine, Total and Free, T3 by Dialysis $125.30 $179.00 Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva · Chicago-Naperville-Elgin, IL-IN HB Ref Triiodothyronine, Total and Free, T3 by Dialysis $125.30 $179.00 Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb · Chicago-Naperville-Elgin, IL-IN HB Ref Triiodothyronine, Total and Free, T3 by Dialysis $125.30 $179.00 Apr 1, 2026
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Northwestern Medicine Valley West Hospital Sandwich · Chicago-Naperville-Elgin, IL-IN HB Ref Triiodothyronine, Total and Free, T3 by Dialysis $125.30 $179.00 Apr 1, 2026
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Northwestern Memorial Hospital Chicago · Chicago-Naperville-Elgin, IL-IN HB Ref Triiodothyronine, Total and Free, T3 by Dialysis $125.30 $179.00 Apr 1, 2026
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St Josephs Hospital Hospital Sisters Third Order of St Francis Breese · St. Louis, MO-IL HC T3 FREE $127.44 $177.00 Mar 24, 2026
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Deaconess Illinois Crossroads Mount Vernon · Mount Vernon, IL HC T3 FREE REF $130.24 $591.98 Feb 3, 2026
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Touchette Regional Hospital Cahokia Heights · St. Louis, MO-IL Triiodothyronine T3; free $134.23 $216.50 Apr 13, 2026
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Shriners Childrens - Chicago Chicago · Chicago-Naperville-Elgin, IL-IN FREE ASSAY (FT-3) $134.90 $134.90 Mar 19, 2026
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Hshs Good Shepherd Hospital Shelbyville · Shelbyville, IL HC T3 FREE $135.36 $188.00 Mar 24, 2026
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Louis A Weiss Memorial Hospital Chicago · Chicago-Naperville-Elgin, IL-IN Triiodothyronine (T3), Free SO $138.00 $405.88 Mar 17, 2025
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County of Clay Flora · Flora, IL LCHG T3 FREE $140.00 $140.00 May 7, 2026
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Hardin County General Hospital Rosiclare · Rosiclare, IL FREE T3 TRIODOTHYRONINE FREE SERUM $146.70 $163.00 Aug 31, 2026
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Anderson Hospital Maryville · St. Louis, MO-IL FREE T3 $155.35 $310.70 Feb 6, 2026
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Thomas H Boyd Memorial Hospital Carrollton · Carrollton, IL Thyroid hormone, T3 measurement, free $156.00 $195.00 Jul 7, 2026
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St Anthonys Memorial Hospital of the Hospital Sisters of the Third Order of St Francis Mattoon · Charleston-Mattoon, IL HC T3 FREE $164.16 $228.00 Mar 24, 2026
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Hammond Henry Dist Hospital Geneseo · Davenport-Moline-Rock Island, IA-IL Thyroid hormone, T3 measurement, free $176.40 $196.00 Jan 22, 2026
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Deaconess Illinois Union County Hospital Anna · Anna, IL HC FREE T3 $176.45 $476.89 Feb 3, 2026
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Salem Township Hospital Salem · Centralia, IL HC TRIIODOTHYRONINE T3; FREE $183.87 $459.67 Dec 3, 2025
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Pana Community Hospital Pana · Taylorville, IL T3 Free $185.25 $185.25 Oct 27, 2026
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Carlinville Area Hospital Carlinville · St. Louis, MO-IL ASSOC CHG FREE T3 REF $185.50 $265.00 Mar 21, 2026
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Northwest Community Hospital Arlington Heights · Chicago-Naperville-Elgin, IL-IN Hb Free Assay (Ft-3) $189.00 $189.00 Apr 1, 2026
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Sarah D Culbertson Memorial Hospital Rushville · Rushville, IL Thyroid hormone, T3 measurement, free $192.60 $214.00 May 26, 2026
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Rochelle Community Hospital Rochelle · Rochelle, IL Thyroid hormone, T3 measurement, free $193.00 $193.00 Sep 28, 2026
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Fairfield Memorial Hospital Fairfield · Fairfield, IL T3 FREE $201.60 $252.00 Mar 24, 2026
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Edward Hospital Naperville · Chicago-Naperville-Elgin, IL-IN HC TRIIODOTHYRONINE T3 FREE $203.00 $203.00 Apr 1, 2026
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Elmhurst Memorial Hospital Elmhurst · Chicago-Naperville-Elgin, IL-IN HC TRIIODOTHYRONINE T3 FREE $203.00 $203.00 Apr 1, 2026
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Washington County Hospital Nashville · Nashville, IL LCHG T3 FREE $208.00 $260.00 Jun 1, 2026
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Resilience Healthcare West Suburban Medical Center Oak Park · Chicago-Naperville-Elgin, IL-IN T3 Free Dialysis LC/MS-MS SO $220.54 $648.65 Mar 17, 2025
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Vista Medical Center East Waukegan · Chicago-Naperville-Elgin, IL-IN T3,FREE $222.70 $222.70 Mar 31, 2025
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Harrisburg Medical Center Harrisburg · Harrisburg, IL HC Triiodothyronine T3 Free $229.60 $287.00 Mar 4, 2026
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Herrin Hospital Herrin · Marion-Herrin, IL HC Triiodothyronine T3 Free $229.60 $287.00 Mar 4, 2026
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Memorial Hospital of Carbondale Carbondale · Carbondale, IL HC Triiodothyronine T3 Free $229.60 $287.00 Mar 4, 2026
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St Joseph Memorial Hospital Murphysboro · Carbondale, IL HC Triiodothyronine T3 Free $229.60 $287.00 Mar 4, 2026
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Jackson Park Hospital Foundation Chicago · Chicago-Naperville-Elgin, IL-IN T3 FREE $232.41 $290.51 Dec 26, 2025
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Kirby Medical Center Monticello · Champaign-Urbana, IL T3 FREE $236.40 $394.00 Jun 11, 2026
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Ingalls Memorial Hospital Harvey · Chicago-Naperville-Elgin, IL-IN Hc Triiodothyronine T3; Free $245.00 $245.00 Apr 1, 2026
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City of Clinton Clinton · Clinton, IL Thyroid hormone, T3 measurement, free $246.80 $246.80 Oct 21, 2026
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Pinckneyville Community Hospital Pinckneyville · Pinckneyville, IL Thyroid hormone, T3 measurement, free $259.00 $259.00 Jun 8, 2026
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Carle Health Pekin Hospital Pekin · Peoria, IL Tc (Triiodothyronine), Free $263.00 $263.00 Apr 15, 2026
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Methodist Medical Center of Illinois Peoria · Peoria, IL Tc (Triiodothyronine), Free $263.00 $263.00 Apr 15, 2026
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Proctor Community Hospital Peoria · Peoria, IL Tc (Triiodothyronine), Free $263.00 $263.00 Apr 15, 2026
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St Marys Hospital Decatur of Hospital Sisters of the Third Order of St Francis Decatur · Decatur, IL HC T3 FREE $277.92 $386.00 Mar 25, 2026
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Hshs Holy Family Hospital Greenville · St. Louis, MO-IL HC T3 FREE $279.36 $388.00 Mar 24, 2026
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Hamilton Memorial Hospital McLeansboror · McLeansboror, IL LCHG T3 FREE $292.01 $324.45 Jun 11, 2026
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Mercyhealth Hospital & Medical Center - Harvard Harvard · Chicago-Naperville-Elgin, IL-IN CHG ASSAY OF TRIIODOTHYRONINE T3 FREE $297.28 $396.37 Mar 1, 2026
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Mercyhealth Crystal Lake Hospital & Medical Center Crystal Lake · Chicago-Naperville-Elgin, IL-IN CHG ASSAY OF TRIIODOTHYRONINE T3 FREE $300.98 $401.31 Mar 1, 2026
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Illini Community Hospital Pittsfield · Pittsfield, IL HC TRIIODOTHYRONINE FREE ASSAY (FT-3) - T3 FREE $311.92 $519.86 Jun 8, 2026
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Richland Memorial Hospital Olney · Olney, IL Tc (Triiodothyronine), Free $326.00 $326.00 Apr 15, 2026
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Rockford Memorial Hospital Rockford · Rockford, IL CHG ASSAY OF TRIIODOTHYRONINE T3 FREE $344.87 $459.83 Mar 1, 2026
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Blessing Hospital Quincy · Quincy, IL-MO HC TRIIODOTHYRONINE FREE ASSAY (FT-3) - T3 FREE $352.43 $587.38 Jun 8, 2026
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Ann & Robert H. Lurie Children's Hospital of Chicago Chicago · Chicago-Naperville-Elgin, IL-IN H FREE T3 (TRIIODOTHYRONINE) $367.50 $525.00 Sep 1, 2026
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Sparta Community Hospital Sparta · Sparta, IL T3 FREE $384.25 $384.25 Jan 8, 2026
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Gibson Area Hospital Gibson City · Champaign-Urbana, IL TRIIODOTHYRO9 T3 FR $385.00 $385.00 Nov 4, 2026
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The University of Chicago Medical Center Chicago · Chicago-Naperville-Elgin, IL-IN Hc Triiodothyronine T3; Free $473.00 $473.00 Apr 1, 2026
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Gateway Regional Medical Center Granite City · St. Louis, MO-IL T3,FREE $514.98 $858.30 Mar 30, 2026
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Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More

By metro area

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

Metro areaHospitalsLowestMedian
Chicago-Naperville-Elgin, IL-IN 54 $13.43 $85.00
St. Louis, MO-IL 9 $92.80 $134.23
Peoria, IL 5 $68.00 $263.00
Davenport-Moline-Rock Island, IA-IL 4 $39.00 $56.66
Champaign-Urbana, IL 3 $71.00 $236.40
Carbondale, IL 2 $229.60 $229.60
Charleston-Mattoon, IL 2 $89.00 $126.58
Marion-Herrin, IL 2 $92.96 $161.28
Anna, IL 1 $176.45 $176.45
Bloomington, IL 1 $51.00 $51.00
Carrollton, IL 1 $156.00 $156.00
Clinton, IL 1 $246.80 $246.80
Centralia, IL 1 $183.87 $183.87
Danville, IL 1 $72.00 $72.00
Decatur, IL 1 $277.92 $277.92
Eldorado, IL 1 $70.50 $70.50
Fairfield, IL 1 $201.60 $201.60
Flora, IL 1 $140.00 $140.00
Freeport, IL 1 $24.80 $24.80
Harrisburg, IL 1 $229.60 $229.60
Kankakee, IL 1 $75.87 $75.87
Litchfield, IL 1 $92.16 $92.16
McLeansboror, IL 1 $292.01 $292.01
Macomb, IL 1 $84.60 $84.60
Mount Vernon, IL 1 $130.24 $130.24
Nashville, IL 1 $208.00 $208.00
Olney, IL 1 $326.00 $326.00
Pinckneyville, IL 1 $259.00 $259.00
Pittsfield, IL 1 $311.92 $311.92
Quincy, IL-MO 1 $352.43 $352.43
Robinson, IL 1 $115.20 $115.20
Rosiclare, IL 1 $146.70 $146.70
Rushville, IL 1 $192.60 $192.60
Rochelle, IL 1 $193.00 $193.00
Rockford, IL 1 $344.87 $344.87
Shelbyville, IL 1 $135.36 $135.36
Sparta, IL 1 $384.25 $384.25
Springfield, IL 1 $72.00 $72.00
Sterling, IL 1 $97.50 $97.50
Taylorville, IL 1 $185.25 $185.25
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More

What free T3 test is, what the price covers and why prices differ: Free T3 test explained.

Free T3 thyroid hormone test in other states

Median cash price across the state's hospitals.