LDH test cost in St. Louis, MO — inpatient
In St. Louis, MO-IL, 13 hospitals list a cash price for lactate dehydrogenase (LDH) blood test as an inpatient: from $12.32 to $101.52, with a median of $75.50. The lowest listed price is at Ranken Jordan Pediatric Bridge Hospital — $63.18 less than the median here. Across Missouri, the median is $51.40 at 64 hospitals.
Cash prices at 13 facilities across 12 cities for code 83615, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 6, 2026 and Aug 6, 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 |
|---|---|---|---|---|---|
| Ranken Jordan Pediatric Bridge Hospital lowest Maryland Heights, MO · (314) 872-6400 Lactate Dehydrogenase | $12.32 | $15.40 | — | 20% | Apr 24, 2026 source file |
| Mercy Rehabilitation Hospital South Louis, MO LDH | $20.93 | $20.93 | $20.93 | — | Mar 16, 2026 source file |
| Mercy Rehabilitation Hospital South Louis, MO LDH FL | $20.93 | $20.93 | $20.93 | — | Mar 16, 2026 source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 LACTATE DEHYDROLDH | $35.70 | $59.50 | $59.50 | 40% | — source file |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 LDH / BODY FLUID | $40.60 | $58.00 | $36.08–$3,396.04 | 30% | — source file |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 LDH | $62.70 | $125.40 | $106.59–$114.11 | 50% | Feb 9, 2026 source file |
| Jersey Community Hospital Jerseyville, IL · (618) 498-6402 LD, Pleural Fluid QST | $71.00 | $71.00 | $37.13–$60.35 | — | — source file |
| St Lukes Rehabilitation Hospital Chesterfield, MO Lactate (LD) (LDH) Enzyme | $75.50 | $75.50 | $52.85–$56.63 | — | Aug 6, 2026 source file |
| Anderson Hospital Maryville, IL · (618) 288-5711 LDH | $83.50 | $167.00 | $125.25–$150.30 | 50% | Feb 6, 2026 source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL · (618) 234-2120 HC LACTATE DEHYDRO (LDH) | $87.12 | $121.00 | $3.80–$121.00 | 28% | — source file |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 LACTATE (LD) (LDH) ENZYME | $89.28 | $124.00 | $3.99–$124.00 | 28% | — source file |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 LACTATE (LD) (LDH) ENZYME | $89.28 | $124.00 | $3.80–$124.00 | 28% | — source file |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 LDH | $89.60 | $128.00 | $79.62–$3,396.04 | 30% | — source file |
| Mercy Rehabilitation Hospital St. Louis Chesterfield, MO LDH | $95.48 | $95.48 | $95.48 | — | Mar 16, 2026 source file |
| Mercy Rehabilitation Hospital St. Louis Chesterfield, MO LDH FL | $95.48 | $95.48 | $95.48 | — | Mar 16, 2026 source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 LACTATE (LD) (LDH) ENZYME | $101.52 | $141.00 | $8.84–$141.00 | 28% | — source file |
Inpatient: lowest $12.32, median $75.50, highest $101.52 — a 8.2× difference within the same market.
As an outpatient, the same code is billed by 17 facilities here, median $51.46 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 8 of 12 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 LDH test measures an enzyme found in most body tissues. A high level is a general sign of tissue damage and is used to follow some anemias, lymphomas and other cancers.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.