Lab tests CPT 85379 Outpatient

D-dimer test cost in Chicago, IL

In Chicago-Naperville-Elgin, IL-IN, 49 hospitals list a cash price for D-dimer blood test (blood clot marker): from $9.00 to $418.00, with a median of $91.00. The lowest listed price is at Uchicago Medicine AdventHealth La Grange and 3 other hospitals — $82.00 less than the median here. Across Illinois, the median is $85.00 at 63 hospitals.

Cash prices at 49 facilities across 36 cities for code 85379, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 17, 2025 and Sep 1, 2026.

Lowest$9.00Uchicago Medicine AdventHealth La Grange + 3 more
Median$91.00half pay less
Highest$418.00in this market
Difference46.4×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Chicago-Naperville-Elgin, IL-IN.

median
Lowest $9.00Highest $418.00

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC D-DIMER QUANTITATIVE $9.00 $36.00 — 75% Apr 1, 2026
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Mercy Medical Center Aurora, IL · (630) 859-2222 D-DIMER, QUANTITATIVE $10.00 $175.00 $4.51–$175.00 94% Sep 1, 2026
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Saint Francis Hospital Evanston, IL · (847) 316-4000 HC FIBRIN DEGRADPRODUCTS,D-DIMER, QUANT $10.00 $294.00 $4.51–$244.02 97% Sep 1, 2026
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Humboldt Park Health Chicago, IL · (773) 292-8200 Coagulation function measurement, D-dimer; quantitative $13.52 $48.30 $48.30 72% Aug 24, 2026
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Gottlieb Memorial Hospital Melrose Park, IL · (708) 681-3200 D-Dimer Quant (Ddim) $35.15 $185.00 $78.81–$155.03 81% Mar 31, 2026
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Loyola University Medical Center Maywood, IL · (708) 216-9000 D-Dimer Quant (Ddim) $42.55 $185.00 $81.22–$194.99 77% Mar 31, 2026
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Northwestern Medicine Marianjoy Rehabilitation Hospital Wheaton, IL HB D-Dimer Quant $47.60 $68.00 $28.56–$68.00 30% Apr 1, 2026
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La Rabida Children's Hospital|LaRabida Childrens Hospital Chicago, IL · (773) 363-6700 D-DIMER ASSAY $66.06 $66.06 — — Apr 1, 2026
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Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 D-Dimer $77.15 $226.92 $8.16–$147.50 66% Mar 17, 2025
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Advocate South Suburban Hospital Hazel Crest, IL D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$167.40 50% Nov 4, 2025
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Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$136.00 50% Nov 4, 2025
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Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$167.88 50% Nov 4, 2025
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Advocate Trinity Hospital Chicago, IL · (773) 967-5002 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$166.80 50% Nov 4, 2025
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Advocate Sherman Hospital Elgin, IL · (847) 742-9800 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$153.00 50% Nov 4, 2025
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Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$162.94 50% Nov 4, 2025
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Advocate Childrens Hospital Park Ridge Park Ridge, IL D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$168.37 50% Nov 4, 2025
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Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$165.23 50% Nov 4, 2025
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Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$167.88 50% Nov 4, 2025
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Advocate Childrens Hospital Oak Lawn Oak Lawn, IL D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$165.96 50% Nov 4, 2025
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Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 D-DIMER QUANTITATIVE $85.00 $170.00 $10.18–$166.80 50% Nov 4, 2025
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Shriners Childrens - Chicago Chicago, IL · (773) 622-5400 FIBRIN DEGRADATION QUANT $87.20 $87.20 $9.05–$18.36 — —
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Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB D-Dimer Quant $91.00 $130.00 $21.58–$130.00 30% Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB D-Dimer Quant $91.00 $130.00 $25.09–$130.00 30% Apr 1, 2026
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NorthShore University HealthSystems Skokie Hospital Skokie, IL D-Dimer Quant* $92.30 $142.00 $19.17–$77.53 35% —
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NorthShore University HealthSystems Evanston Hospital Evanson, IL · (847) 570-2000 D-Dimer Quant* $92.30 $142.00 $19.17–$77.53 35% —
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NorthShore University HealthSystems Glenbrook Hospital Glenview, IL D-Dimer Quant* $92.30 $142.00 $19.17–$77.53 35% —
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NorthShore University HealthSystems Highland Park Hospital Highland Park, IL D-Dimer Quant* $92.30 $142.00 $19.17–$77.53 35% —
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Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC D DIMER, QUATNTITAT. $97.02 $294.00 $10.18–$42.23 67% —
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Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC D DIMER, QUATNTITAT. $97.02 $294.00 $10.18–$42.23 67% —
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB D-Dimer Quant $107.80 $154.00 $22.95–$154.00 30% Apr 1, 2026
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Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB D-Dimer Quant $116.90 $167.00 $26.72–$167.00 30% Apr 1, 2026
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Community First Medical Center Chicago, IL · (773) 282-7000 Coagulation function measurement, D-dimer; quantitative $119.88 $239.75 $4.38–$239.75 50% Apr 1, 2026
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Northwestern Medicine Marianjoy Rehabilitation Hospital Wheaton, IL HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $76.44–$182.00 30% Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $30.21–$182.00 30% Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $33.31–$182.00 30% Apr 1, 2026
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Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $29.12–$182.00 30% Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $27.12–$182.00 30% Apr 1, 2026
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Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $34.58–$182.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $12.56–$182.00 30% Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Bleeding Diathesis Profile, Fibrin Degradation Quant (Mayo) $127.40 $182.00 $35.13–$182.00 30% Apr 1, 2026
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Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Fibrin Degradation Quant $134.00 $134.00 — — Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $28.61–$192.00 30% Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $37.06–$192.00 30% Apr 1, 2026
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Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $30.72–$192.00 30% Apr 1, 2026
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Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $30.72–$192.00 30% Apr 1, 2026
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Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $30.72–$192.00 30% Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $31.87–$192.00 30% Apr 1, 2026
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Northwestern Medicine Marianjoy Rehabilitation Hospital Wheaton, IL HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $80.64–$192.00 30% Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $35.14–$192.00 30% Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $35.14–$192.00 30% Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $35.14–$192.00 30% Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $31.87–$192.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $13.25–$192.00 30% Apr 1, 2026
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Northwestern Medicine Marianjoy Rehabilitation Hospital Wheaton, IL HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $80.64–$192.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $13.25–$192.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $13.25–$192.00 30% Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $31.87–$192.00 30% Apr 1, 2026
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Northwestern Medicine Marianjoy Rehabilitation Hospital Wheaton, IL HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $80.64–$192.00 30% Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $28.61–$192.00 30% Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $28.61–$192.00 30% Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $37.06–$192.00 30% Apr 1, 2026
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Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Disseminated Intravascular Coagulation (Dic) Profile, Fibrin Degration (Lc) $134.40 $192.00 $36.48–$192.00 30% Apr 1, 2026
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Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Thrombophilia Profile, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $36.48–$192.00 30% Apr 1, 2026
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Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $36.48–$192.00 30% Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Prolonged Clot Time, Fibrin Degradation Quant (Mayo) $134.40 $192.00 $37.06–$192.00 30% Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Thrombosis, Venous Risk Profile, D-Dimer, Quantitative (Lc) $136.50 $195.00 $29.06–$195.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Thrombosis, Venous Risk Profile, D-Dimer, Quantitative (Lc) $136.50 $195.00 $13.46–$195.00 30% Apr 1, 2026
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Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $38.79–$201.00 30% Apr 1, 2026
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Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $38.19–$201.00 30% Apr 1, 2026
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Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $33.37–$201.00 30% Apr 1, 2026
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Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $32.16–$201.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $13.87–$201.00 30% Apr 1, 2026
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Northwestern Medicine Marianjoy Rehabilitation Hospital Wheaton, IL HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $84.42–$201.00 30% Apr 1, 2026
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Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $36.78–$201.00 30% Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Markers of Coagulation Activation, Fibrin Degradation Quant (Lc) $140.70 $201.00 $29.95–$201.00 30% Apr 1, 2026
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Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB D-DIMER, QUANT* $142.00 $142.00 — — Apr 1, 2026
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Endeavor Health Clinical Operations Highland Park, IL HB D-DIMER, QUANT* $142.00 $142.00 — — Apr 1, 2026
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Swedish Covenant Health Chicago, IL · (773) 878-8200 HB D-DIMER, QUANT* $142.00 $142.00 — — Apr 1, 2026
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Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 D-Dimer $153.18 $450.52 $8.16–$292.84 66% Mar 17, 2025
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Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB D-Dimer Quant $165.90 $237.00 $43.37–$237.00 30% Apr 1, 2026
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The Methodist Hospitals Gary, IN · (219) 886-4000 Ddimer Test $166.60 $238.00 $10.18–$211.82 30% —
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The Methodist Hospitals Merrillville, IN Ddimer Test $166.60 $238.00 $10.18–$211.82 30% —
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Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB D-Dimer Quant $168.70 $241.00 $45.79–$241.00 30% Apr 1, 2026
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Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref D-Dimer Quant $172.90 $247.00 $36.80–$247.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref D-Dimer Quant $172.90 $247.00 $17.04–$247.00 30% Apr 1, 2026
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Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB D-Dimer Quant $181.30 $259.00 $17.87–$259.00 30% Apr 1, 2026
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Edward Hospital Naperville, IL · (630) 527-3000 HC FIBRIN DEGRADATION PRODUCT D DIMER $189.00 $189.00 — — Apr 1, 2026
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Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC FIBRIN DEGRADATION D DIMER QUANT $189.00 $189.00 — — Apr 1, 2026
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Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC FIBRIN DEGRADATION PRODUCT D DIMER $189.00 $189.00 — — Apr 1, 2026
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Uchicago Medicine Northwest Indiana Crown Point, IN · (312) 755-4706 HC FIBRIN DEGRADATION PRODUCTS; D DIMER; QUANTITATIVE $249.00 $249.00 — — Apr 1, 2026
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Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Fibrin Degradation Products; D Dimer; Quantitative $249.00 $249.00 — — Apr 1, 2026
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The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Fibrin Degradation Products; D Dimer; Quantitative $418.00 $418.00 — — Apr 1, 2026
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Outpatient: lowest $9.00, median $91.00, highest $418.00 — a 46.4× difference within the same market.

As an inpatient, the same code is billed by 32 facilities here, median $85.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

Cash or insurance?

At 29 of 35 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

What it is

A D-dimer test measures a protein fragment released when a blood clot breaks down. A normal result helps rule out a clot in the legs or lungs when the chance of one is low.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 85379 ($85.50). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

Roseland Community Hospital Association Chicago, ILCoagulation function measurement, D-dimer; quantitative $4.51 file