Lab tests CPT 85730 Inpatient — admitted to hospital

Partial thromboplastin time (PTT) clotting test in Buffalo-Cheektowaga, NY — inpatient

In Buffalo-Cheektowaga, NY, 5 hospitals list a cash price for Partial thromboplastin time (PTT) clotting test as an inpatient: from $6.01 to $67.07, with a median of $15.00. The lowest listed price is at Mount St. Mary's Hospital.

Cash prices at 5 facilities across 2 cities for code 85730, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Aug 25, 2026.

Lowest$6.01Mount St. Mary's Hospital
Median$15.00half pay less
Highest$67.07in this market
Difference11.2×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Buffalo-Cheektowaga, NY.

median
Lowest $6.01Highest $67.07

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Mount St. Mary's Hospital lowest Lewiston, NY Thromboplas Time Partial - APTT $6.01 $15.00 60%
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Sisters of Charity Hospital Buffalo, NY Thromboplas Time Partial - APTT $6.01 $15.00 60%
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Mercy Hospital of Buffalo Buffalo, NY Thromboplas Time Partial - APTT $6.01 $15.00 60%
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Mount St. Mary's Hospital Lewiston, NY Thromboplas Time Partial - Additional Charge $15.00 $15.00
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Sisters of Charity Hospital Buffalo, NY Thromboplas Time Partial - Additional Charge $15.00 $15.00
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Sisters of Charity Hospital Buffalo, NY Thromboplas Time Partial - PTT CRRT System $15.00 $15.00
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Mercy Hospital of Buffalo Buffalo, NY Thromboplas Time Partial - Additional Charge $15.00 $15.00
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Mercy Hospital of Buffalo Buffalo, NY Thromboplas Time Partial - PTT CRRT System $15.00 $15.00
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Mount St. Mary's Hospital Lewiston, NY Thromboplas Time Partial - PTT CRRT System $15.00 $15.00
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Erie County Medical Center Corporation Buffalo, NY PARTIAL THROMBOPLASTIN PAT $25.57 $58.01 56% Aug 25, 2026
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Roswell Park Cancer Institute Buffalo, NY Lup Anticoag Ptt Plasma $67.07 $67.07 Apr 1, 2026
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Roswell Park Cancer Institute Buffalo, NY Part Thromb Time (Aptt) $67.07 $67.07 Apr 1, 2026
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Inpatient: lowest $6.01, median $15.00, highest $67.07 — a 11.2× difference within the same market.

As an outpatient, the same code is billed by 6 facilities here, median $15.00 — 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.