Calprotectin test cost in St. Louis, MO
In St. Louis, MO-IL, 8 hospitals list a cash price for fecal calprotectin (stool inflammation test): from $92.58 to $256.32, with a median of $171.28. The lowest listed price is at Shriners Childrens - St Louis — $78.70 less than the median here. Across Missouri, the median is $167.70 at 24 hospitals.
Cash prices at 8 facilities across 6 cities for code 83993, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
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 |
|---|---|---|---|---|---|
| Shriners Childrens - St Louis lowest Saint Louis, MO · (314) 432-3600 ASSAY FOR CALPROTECTIN FECAL | $92.58 | $92.58 | $16.45–$33.72 | — | — source file |
| Mercy Hospital Jefferson Festus, MO Calprotectin Fecal | $113.75 | $175.00 | $17.67–$44.17 | 35% | — source file |
| Mercy Hospital Washington Washington, MO Calprotectin Fecal | $117.65 | $181.00 | $17.67–$33.19 | 35% | — source file |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Calprotectin Fecal | $164.45 | $253.00 | $17.67–$44.17 | 35% | — source file |
| Mercy Hospital St Louis Saint Louis, MO Calprotectin Fecal | $178.10 | $274.00 | $17.67–$44.17 | 35% | — source file |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Calprotectin Fecal | $186.55 | $287.00 | $19.63–$27.80 | 35% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 CALPROTECTIN FECAL | $237.45 | $395.75 | $395.75 | 40% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 Q16796 CALPRO STL IA | $237.45 | $395.75 | $395.75 | 40% | — source file |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC CALPROTECTIN STOOL-90 | $256.32 | $356.00 | $8.82–$356.00 | 28% | — source file |
Outpatient: lowest $92.58, median $171.28, highest $256.32 — a 2.8× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $246.89. 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 2 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 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
Fecal calprotectin measures a protein released by inflamed bowel. It helps tell inflammatory bowel disease from irritable bowel syndrome.
What the price covers
The price usually covers running the stool test; the collection kit is often included.