Lab tests CPT 86665 Inpatient — admitted to hospital

Epstein-Barr (EBV) test cost in St. Louis, MO — inpatient

In St. Louis, MO-IL, 8 hospitals list a cash price for epstein-Barr virus (EBV) antibody test as an inpatient: from $62.85 to $233.00, with a median of $108.86. The lowest listed price is at Mercy Rehabilitation Hospital South — $46.01 less than the median here. Across Missouri, the median is $79.20 at 61 hospitals.

Cash prices at 8 facilities across 8 cities for code 86665, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 6, 2026 and Mar 16, 2026.

Lowest$62.85Mercy Rehabilitation Hospital South
Median$108.86half of hospitals charge less
Highest$233.00in this market
Difference3.7×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 St. Louis, MO-IL.

median
Lowest $62.85Highest $233.00

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
Mercy Rehabilitation Hospital South lowest Louis, MO EPSTEIN BARR ANTIBODY VCA File of Mar 16, 2026 · source file $62.85 $62.85 $62.85 —
Carlinville Area Hospital Carlinville, IL · (217) 854-3141 EPSTEIN-BARR VIRUS/VCA IGG+1 more line at this price source file $75.60 $108.00 $67.18–$3,396.04 30%
Mercy Rehabilitation Hospital St. Louis Chesterfield, MO EPSTEIN BARR ANTIBODY VCA File of Mar 16, 2026 · source file $86.28 $86.28 $86.28 —
Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC EBV VIRAL CAP-90 source file $106.56 $148.00 $8.50–$148.00 28%
Community Hospital of Staunton Staunton, IL · (618) 635-2200 EPSTEIN BARR CAPSID VCA File of Feb 9, 2026 · source file $111.15 $222.30 $188.96–$202.29 50%
Gateway Regional Medical Center Granite City, IL · (618) 798-3000 Q8474 EBV VCA IGG IA source file $126.30 $210.50 $210.50 40%
Anderson Hospital Maryville, IL · (618) 288-5711 EPSTEIN BARR CAPSID VCA File of Feb 6, 2026 · source file $135.65 $271.30 $203.48–$244.17 50%
Gateway Regional Medical Center Granite City, IL · (618) 798-3000 EPSTEIN-BARR, VCA source file $217.75 $362.91 $362.91 40%
Jersey Community Hospital Jerseyville, IL · (618) 498-6402 EBV Viral Capsid Ag (VCA) Ab (IgG) QST+1 more line at this price source file $233.00 $233.00 $121.86–$198.05 —
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

Inpatient: lowest $62.85, median $108.86, highest $233.00 — a 3.7× difference within the same market.

As an outpatient, the same code is billed by 13 facilities here, median $106.56 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 5 of 8 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

An EBV antibody test looks for antibodies to the Epstein-Barr virus, which causes mononucleosis. It is used when the rapid mono test (86308) is negative but mono is still suspected.

What the price covers

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