PTT blood test cost in Knox, IN — inpatient
In Knox, IN, 1 hospital lists a cash price for partial thromboplastin time (PTT) clotting test as an inpatient: from $71.20 to $71.20, with a median of $71.20. Across Indiana, the median is $49.00 at 82 hospitals.
Cash prices at 1 facility for code 85730, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 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 Knox, IN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Northwest Health - Starke lowest Knox, IN · (574) 772-6231 85730 L117199 THROMBO TIME | $71.20 | $129.45 | $43.37–$121.68 | 45% | Apr 1, 2026 source file |
| Northwest Health - Starke Knox, IN · (574) 772-6231 85730 - L117079 APTT | $74.76 | $135.92 | $45.53–$127.76 | 45% | Apr 1, 2026 source file |
| Northwest Health - Starke Knox, IN · (574) 772-6231 Partial Thromboplastin Time | $74.76 | $135.92 | $45.53–$127.76 | 45% | Apr 1, 2026 source file |
| Northwest Health - Starke Knox, IN · (574) 772-6231 PTT, Activated (LC) | $74.76 | $135.92 | $45.53–$127.76 | 45% | Apr 1, 2026 source file |
Inpatient: lowest $71.20, median $71.20, highest $71.20.
As an outpatient, the same code is billed by 1 facility here, median $34.95 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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
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.