Lab tests CPT 85379 Outpatient

D-dimer test cost in Riverside, CA

In Riverside-San Bernardino-Ontario, CA, 23 hospitals list a cash price for D-dimer blood test (blood clot marker): from $9.12 to $1,243.00, with a median of $31.20. The lowest listed price is at Riverside University Medical Center — $22.08 less than the median here. Across California, the median is $143.52 at 207 hospitals.

  • The median here, $31.20, is 67% below the US median of $95.43.
  • That is 3.1× Medicare's 2026 national rate for the same service ($10.18).
  • Riverside, CA has the lowest median of 5 metro areas in California with at least 10 hospitals pricing this code.
  • 6 of 23 hospitals list a cash price equal to their full list price, with no self-pay discount.

Cash prices at 23 facilities across 19 cities for code 85379, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 1, 2026; the hospital files themselves were last updated between Jan 14, 2026 and Sep 30, 2026.

Lowest$9.12Riverside University Medical Center
Median$31.20half of hospitals charge less
Highest$1,243.00in this market
Difference136.3×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 Riverside-San Bernardino-Ontario, CA.

median
Lowest $9.12Highest $1,243.00

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
Riverside University Medical Center lowest Moreno Valley, CA · (951) 486-4000 HC Qu D Dimer Quant+1 more line at this price File of Mar 30, 2026 · source file $9.12 $9.12 $6.84–$12.56 —
Desert Valley Hospital Victorville, CA · (760) 241-8000 FIBRIN D-DIMER QN File of Sep 1, 2026 · source file $10.00 $202.65 $10.08–$202.65 95%
Montclair Hospital Medical Center Montclair, CA · (909) 625-8300 Hc Fibrin Degradproducts,D-Dimer, Quant File of Sep 1, 2026 · source file $10.00 $397.19 $9.67–$397.19 97%
Chino Valley Medical Center Chino, CA · (909) 627-6111 Hc Fibrin Degradproducts,D-Dimer, Quant File of Sep 1, 2026 · source file $10.00 $397.19 $9.67–$397.19 97%
St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 RL-UI-D-DIMER File of Sep 30, 2026 · source file $12.51 $38.00 $8.86–$64.90 67%
Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 RL-UI-D-DIMER File of Sep 30, 2026 · source file $14.78 $38.00 $7.60–$64.90 61%
San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 COAGULATION FUNCTION MEASUREMENT; D-DIMER; QUANTITATIVE File of May 20, 2026 · source file $14.81 $74.06 $9.67–$74.06 80%
San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 FIBRIN DEGRADATION QUANT File of May 20, 2026 · source file $15.33 $76.66 $9.67–$76.66 80%
St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC DDIMER QUANT File of Apr 1, 2026 · source file $17.47 $36.39 — 52%
Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC D-DIMER File of Sep 2, 2026 · source file $27.00 $60.00 $8.24–$102.88 55%
Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC D-DIMER File of Sep 2, 2026 · source file $27.00 $60.00 $8.24–$105.00 55%
Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC D-DIMER File of Sep 2, 2026 · source file $27.00 $60.00 $10.18–$96.59 55%
Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 D-DIMER QN File of Sep 30, 2026 · source file $29.95 $77.00 $10.18–$77.00 61%
St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 D-DIMER QN File of Sep 30, 2026 · source file $30.95 $94.00 $8.86–$94.00 67%
Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 QUANT D-DIMER File of Jan 14, 2026 · source file $31.20 $78.00 $35.10–$66.30 60%
Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 D-DIMER File of Jan 14, 2026 · source file $39.28 $98.20 $44.19–$83.47 60%
Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 D DIMER QUANT STAT File of Jan 14, 2026 · source file $40.46 $101.15 $45.52–$85.98 60%
San Bernardino County Colton, CA · (909) 580-1000 HC FIBRIN DEGRADPRODUCTS,D-DIMER, QUANT - D-DIMER,QUANTITATIVE File of Feb 25, 2026 · source file $42.07 $42.07 $9.05–$30.50 —
Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 FDP (D-DIMER RATE) File of Jan 14, 2026 · source file $57.50 $143.74 $64.68–$122.18 60%
Palo Verde Hospital Blythe, CA · (760) 922-4115 D-Dimer File of Jul 1, 2026 · source file $82.50 $110.00 — 25%
Redlands Community Hospital Redlands, CA · (909) 335-5500 Coagulation function measurement, D-dimer; quantitative File of Jun 19, 2026 · source file $100.32 $418.00 $8.65–$403.00 76%
Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC D DIMER File of Sep 2, 2026 · source file $110.25 $245.00 $8.24–$208.25 55%
Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC D DIMER File of Sep 2, 2026 · source file $110.25 $245.00 $10.18–$183.75 55%
Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC D DIMER File of Sep 2, 2026 · source file $110.25 $245.00 $8.24–$220.50 55%
Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 FIBRIN DGRADJ PRODUCTS D-DIMER QUANTITATIVE File of Apr 1, 2026 · source file $143.52 $276.00 $7.00–$20.00 48%
Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 FIBRIN DGRADJ PRODUCTS D-DIMER QUANTITATIVE File of Apr 1, 2026 · source file $143.52 $276.00 $7.00–$20.00 48%
Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 FIBRIN DGRADJ PRODUCTS D-DIMER QUANTITATIVE File of Apr 1, 2026 · source file $143.52 $276.00 $7.00–$20.00 48%
Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 FIBRIN DGRADJ PRODUCTS D-DIMER QUANTITATIVE File of Apr 1, 2026 · source file $143.52 $276.00 $7.00–$20.00 48%
Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC D Dimer Quant Meter+1 more line at this price File of Mar 30, 2026 · source file $173.90 $173.90 $7.33–$173.90 —
San Antonio Regional Hospital Upland, CA · (909) 985-2811 Coagulation function measurement, D-dimer; quantitative File of Apr 2, 2026 · source file $185.00 $11.25 $1.15–$201.00 -1544%
Menifee Global Medical Center Menifee, CA · (951) 679-8888 LAB DDT QT File of May 20, 2026 · source file $251.00 $251.00 $9.05–$251.00 —
Hemet Global Medical Center Hemet, CA · (951) 652-2811 LAB DDT QT File of Jun 15, 2026 · source file $251.00 $251.00 $9.05–$251.00 —
Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC D-Dimer Quantitive+1 more line at this price File of Mar 30, 2026 · source file $572.85 $572.85 $7.33–$572.85 —
Riverside Community Hospital Riverside, CA · (951) 788-3000 D-DIMER QUANT+1 more line at this price File of Sep 1, 2026 · source file $1,243.00 $1,243.00 $10.18–$1,118.70 —
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
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
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

Outpatient: lowest $9.12, median $31.20, highest $1,243.00 — a 136.3× difference within the same market.

As an inpatient, the same code is billed by 15 facilities here, median $42.07. 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 13 of 21 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 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 D-dimer test is, what the price covers and why prices differ: D-dimer test explained.

4 rows held back from this comparison

They are priced below $1 or below a tenth of the national median for code 85379 ($89.10). 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.

HospitalCash priceFile
Eisenhower Medical Center Rancho Mirage, CAHC Ddimer Quantitative $5.04 file
Eisenhower Medical Center Rancho Mirage, CAHC Aathr - D-Dimer, P $5.04 file
Eisenhower Medical Center Rancho Mirage, CAHC Aprol - D-Dimer, P $5.04 file
Eisenhower Medical Center Rancho Mirage, CAHC Albld - D-Dimer, P $5.04 file
File Link to the hospital's own price file.