Partial thromboplastin time (PTT) clotting test in Houston-Pasadena-The Woodlands, TX — inpatient
In Houston-Pasadena-The Woodlands, TX, 12 hospitals list a cash price for Partial thromboplastin time (PTT) clotting test as an inpatient: from $6.01 to $169.50, with a median of $160.50. The lowest listed price is at Harris Health.
Cash prices at 12 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 5, 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 Houston-Pasadena-The Woodlands, TX.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Harris Health lowest Taub Loop Houston, TX PTT; PLASMA OR WHOLE BLOOD, LUPUS | $6.01 | $18.00 | 67% | — source file |
| Harris Health Houston, TX PTT; PLASMA OR WHOLE BLOOD, LUPUS | $6.01 | $18.00 | 67% | — source file |
| Harris Health Houston, TX COAG PARTIAL THROMBOPLASTIN (PTT) | $6.01 | $135.00 | 96% | — source file |
| Harris Health Taub Loop Houston, TX COAG PARTIAL THROMBOPLASTIN (PTT) | $6.01 | $135.00 | 96% | — source file |
| Methodist West Houston Hospital Houston, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Methodist Sugar Land Hospital Sugar Land, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| The Methodist Hospital Houston, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist The Woodlands Hospital The Woodlands, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Baytown Hospital Baytown, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Cypress Hospital Cypress, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Continuing Care Hospital Katy, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Methodist Willowbrook Hospital Houston, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Clear Lake Hospital Nassau Bay, TX HC PTT HEPZYME TOTAL | $35.00 | $70.00 | 50% | Apr 1, 2026 source file |
| Texas Children's Hospital Houston, TX TC PARTIAL THROMBOPLASTIN TIME | $106.53 | $159.00 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital Houston, TX TC PARTIAL THROMBOPLASTIN TIME | $106.53 | $159.00 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital Houston, TX TC PARTIAL THROMBOPLASTIN TIME | $106.53 | $159.00 | 33% | Mar 5, 2026 source file |
| Houston Methodist Baytown Hospital Baytown, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Cypress Hospital Cypress, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Cypress Hospital Cypress, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Continuing Care Hospital Katy, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Baytown Hospital Baytown, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist The Woodlands Hospital The Woodlands, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist The Woodlands Hospital The Woodlands, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Clear Lake Hospital Nassau Bay, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Methodist Sugar Land Hospital Sugar Land, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Methodist Sugar Land Hospital Sugar Land, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Clear Lake Hospital Nassau Bay, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Methodist West Houston Hospital Houston, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Methodist West Houston Hospital Houston, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Houston Methodist Continuing Care Hospital Katy, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Methodist Willowbrook Hospital Houston, TX HC PTT LUPUS ANTICOAG | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| Methodist Willowbrook Hospital Houston, TX HC PTT LA | $160.50 | $321.00 | 50% | Apr 1, 2026 source file |
| The Methodist Hospital Houston, TX HC PTT LUPUS ANTICOAG | $169.50 | $339.00 | 50% | Apr 1, 2026 source file |
| The Methodist Hospital Houston, TX HC PTT LA | $169.50 | $339.00 | 50% | Apr 1, 2026 source file |
Inpatient: lowest $6.01, median $160.50, highest $169.50 — a 28.2× difference within the same market.
As an outpatient, the same code is billed by 14 facilities here, median $106.53 — 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.