Lyme disease test cost in St. Louis, MO
In St. Louis, MO-IL, 13 hospitals list a cash price for Lyme disease antibody test: from $31.20 to $217.00, with a median of $118.40. The lowest listed price is at Mercy Hospital South — $87.20 less than the median here. Across Missouri, the median is $91.65 at 61 hospitals.
- The median here, $118.40, is 68% above the US median of $70.40.
- That is 7.0× Medicare's 2026 national rate for the same service ($17.03).
- St. Louis, MO has the lowest median of 2 metro areas in Missouri with at least 10 hospitals pricing this code.
- 2 of 13 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 13 facilities across 11 cities for code 86618, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 6, 2026 and Jun 10, 2026.
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.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Mercy Hospital South lowest Saint Louis, MO · (314) 525-1000 Lyme Disease Antibody File of Jun 10, 2026 · source file | $31.20 | $48.00 | $15.33–$38.32 | 35% |
| Mercy Hospital Jefferson Festus, MO · (636) 933-1000 Lyme Disease Antibody CSF File of Jun 10, 2026 · source file | $61.10 | $94.00 | $15.33–$38.32 | 35% |
| Mercy Hospital St Louis Saint Louis, MO · (314) 251-6000 Lyme Disease Antibody CSF File of Jun 4, 2026 · source file | $61.10 | $94.00 | $6.11–$94.00 | 35% |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Lyme Disease Antibody CSF File of Jun 10, 2026 · source file | $61.10 | $94.00 | $15.33–$38.32 | 35% |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 LYME DISEASE AB File of Mar 30, 2026 · source file | $100.70 | $167.84 | $167.84 | 40% |
| Mercy Hospital Jefferson Festus, MO · (636) 933-1000 Lyme Disease Antibody File of Jun 10, 2026 · source file | $100.75 | $155.00 | $15.33–$38.32 | 35% |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 Lyme Disease Antibody File of Jun 10, 2026 · source file | $110.50 | $170.00 | $11.05–$153.00 | 35% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 LYME DISEASE File of Feb 9, 2026 · source file | $111.15 | $222.30 | $64.27–$202.29 | 50% |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Lyme Disease Antibody Igg File of Jun 10, 2026 · source file | $115.70 | $178.00 | $11.57–$178.00 | 35% |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 LYME DISEASE ANTIBODY File of Mar 18, 2026 · source file | $118.40 | $118.40 | $9.29–$29.26 | — |
| Mercy Hospital St Louis Saint Louis, MO · (314) 251-6000 Lyme Disease Antibody Igg File of Jun 4, 2026 · source file | $118.95 | $183.00 | $11.90–$183.00 | 35% |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 LYME DISEASE TOTAL AB TEST WITH REFLEX File of Mar 21, 2026 · source file | $121.80 | $174.00 | $62.64–$248.57 | 30% |
| Anderson Hospital Maryville, IL · (618) 288-5711 LYME DISEASE File of Feb 6, 2026 · source file | $129.10 | $258.20 | $15.92–$232.38 | 50% |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 Lyme Disease Antibody CSF File of Jun 10, 2026 · source file | $137.15 | $211.00 | $15.33–$28.80 | 35% |
| Mercy Hospital Jefferson Festus, MO · (636) 933-1000 Lyme Disease Antibody Igg File of Jun 10, 2026 · source file | $143.00 | $220.00 | $14.30–$220.00 | 35% |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Lyme Disease Antibody CSF File of Jun 10, 2026 · source file | $150.80 | $232.00 | $15.06–$38.32 | 35% |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 Lyme Disease Antibody Igg File of Jun 10, 2026 · source file | $154.70 | $238.00 | $15.33–$28.80 | 35% |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Lyme Disease Antibody Igg File of Jun 10, 2026 · source file | $156.65 | $241.00 | $15.06–$38.32 | 35% |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Lyme Disease Antibody File of Jun 10, 2026 · source file | $157.30 | $242.00 | $15.73–$242.00 | 35% |
| Mercy Hospital St Louis Saint Louis, MO · (314) 251-6000 Lyme Disease Antibody File of Jun 4, 2026 · source file | $157.30 | $242.00 | $15.33–$38.32 | 35% |
| Touchette Regional Hospital Cahokia Heights, IL · (618) 332-3060 Antibody; Borrelia burgdorferi (Lyme disease) File of Apr 13, 2026 · source file | $177.32 | $286.00 | $10.88–$272.00 | 38% |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC LYME AB-90 File of Mar 24, 2026 · source file | $203.76 | $283.00 | $8.50–$283.00 | 28% |
| Jersey Community Hospital Jerseyville, IL · (618) 498-6402 Lyme Antibody Screen QST File of Mar 10, 2026 · source file | $217.00 | $217.00 | $113.49–$184.45 | — |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 Q6646 LYM AB IGG/IGM File of Mar 30, 2026 · source file | $343.88 | $573.13 | $573.13 | 40% |
Outpatient: lowest $31.20, median $118.40, highest $217.00 — a 7.0× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $125.45. 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 9 of 13 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 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 Lyme disease test is, what the price covers and why prices differ: Lyme disease test explained.