H. pylori blood test cost in St. Louis, MO — inpatient
In St. Louis, MO-IL, 5 hospitals list a cash price for H. pylori antibody blood test as an inpatient: from $34.01 to $79.46, with a median of $58.39. The lowest listed price is at Gateway Regional Medical Center — $24.38 less than the median here. Across Missouri, the median is $87.53 at 26 hospitals.
Cash prices at 5 facilities across 5 cities for code 86677, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 16, 2026 and Apr 24, 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 | File date |
|---|---|---|---|---|---|
| Gateway Regional Medical Center lowest Granite City, IL · (618) 798-3000 Q37695 H PYLORI AB Q | $34.01 | $56.69 | $56.69 | 40% | — source file |
| Ranken Jordan Home for Convalescent Crippled Children Hospital Maryland Heights, MO · (314) 872-6400 Helicobacter Pylori Antibody | $34.82 | $43.52 | — | 20% | Apr 24, 2026 source file |
| Mercy Rehabilitation Hospital South Louis, MO HELICOBACTER PYLORI AB | $58.39 | $58.39 | $58.39 | — | Mar 16, 2026 source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 HC H PYLORI AB | $75.60 | $105.00 | $18.83–$105.00 | 28% | — source file |
| Mercy Rehabilitation Hospital St. Louis Chesterfield, MO HELICOBACTER PYLORI AB | $79.46 | $79.46 | $79.46 | — | Mar 16, 2026 source file |
Inpatient: lowest $34.01, median $58.39, highest $79.46 — a 2.3× difference within the same market.
As an outpatient, the same code is billed by 9 facilities here, median $79.30 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 4 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 it is
This blood test looks for antibodies to H. pylori, the stomach bacteria behind most ulcers. It shows exposure but cannot tell a current infection from a past one.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.