Partial thromboplastin time (PTT) clotting test in St. Louis, MO-IL — inpatient
In St. Louis, MO-IL, 8 hospitals list a cash price for Partial thromboplastin time (PTT) clotting test as an inpatient: from $20.82 to $164.88, with a median of $78.48. The lowest listed price is at Mercy Rehabilitation Hospital South.
Cash prices at 8 facilities across 8 cities for code 85730, 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 | Off list | File date |
|---|---|---|---|---|
| Mercy Rehabilitation Hospital South lowest Louis, MO APTT | $20.82 | $20.82 | — | Mar 16, 2026 source file |
| Mercy Rehabilitation Hospital South Louis, MO PTT | $20.82 | $20.82 | — | Mar 16, 2026 source file |
| Ranken Jordan Home for Convalescent Crippled Children Hospital Maryland Heights, MO Partial Thromboplastin Time | $25.68 | $32.09 | 20% | Apr 24, 2026 source file |
| Ranken Jordan Home for Convalescent Crippled Children Hospital Maryland Heights, MO Prothrombin w/INR & Partial Thromboplastin Times | $31.84 | $39.79 | 20% | Apr 24, 2026 source file |
| American Healthcare Systems Illinois LLC Granite City, IL THROMBOPLAST TIMEPTT | $35.36 | $58.94 | 40% | — source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL THROMBOPLASTIN TIME PARTIAL | $78.48 | $109.00 | 28% | — source file |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL THROMBOPLASTIN TIME PARTIAL | $79.20 | $110.00 | 28% | — source file |
| Mercy Rehabilitation Hospital St. Louis Chesterfield, MO APTT | $115.64 | $115.64 | — | Mar 16, 2026 source file |
| Mercy Rehabilitation Hospital St. Louis Chesterfield, MO PTT | $115.64 | $115.64 | — | Mar 16, 2026 source file |
| Hshs Holy Family Hospital Inc Greenville, IL THROMBOPLASTIN TIME PARTIAL | $120.96 | $168.00 | 28% | — source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL THROMBOPLASTIN TIME PARTIAL | $164.88 | $229.00 | 28% | — source file |
Inpatient: lowest $20.82, median $78.48, highest $164.88 — a 7.9× difference within the same market.
As an outpatient, the same code is billed by 12 facilities here, median $64.68 — that is the price to compare if you are not being admitted.
What it is
The partial thromboplastin time (PTT or aPTT) test measures how long it takes blood to clot through a different pathway than the PT test. It is used to check for bleeding disorders, before surgery, and to monitor heparin.
What the price covers
The price usually covers the PTT test. The blood draw is often billed separately.