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PricedCare

Prothrombin time (blood clotting test) in Chicago, IL-IN costs $4 to $134. Here's every hospital's price.

33 hospitals in the Chicago-Naperville-Elgin, IL-IN metro area publish a cash price for prothrombin time (blood clotting test) (CPT 85610). We read their files every month so you don't have to.

Across the Chicago-Naperville-Elgin, IL-IN metro area, 33 hospitals list a cash price for prothrombin time (blood clotting test) (CPT 85610). The lowest is $4 at Uchicago Medicine Adventhealth La Grange, the median is $28 and the highest is $134 at Ingalls Memorial Hospital. The most expensive hospital lists 36 times the cheapest for the same code.

The Chicago, IL-IN median of $28 is 22% above the national median of $23 across 569 US hospitals with a cash price for this code.

33 of these hospitals also publish the rates they negotiated with insurers, from $3 to $8,500. With insurance you pay a share of the negotiated rate, which is sometimes higher than the cash price; you may ask for the cash price instead.

The files behind these prices are dated between January 2025 and August 2026. 47 other hospitals in the metro area have no readable price for this code: some publish no file, some block automated reading, some leave the code out. They are listed below so you can call them.

$4
lowest cash price in Chicago, IL-IN
Uchicago Medicine Adventhealth La Grange · 3 mi
$24 below the median
$28
median cash price
33 hospitals
36×
highest ÷ lowest
same procedure, same metro
33/82
hospitals with a cash price
47 don't · see who

Sorted by cash price

Hospital facility fee only
1
Uchicago Medicine Adventhealth La Grange

La Grange · 3 mi · File Apr 2026

$4
list $15 · lowest of 32 lines
2
Uchicago Medicine Adventhealth Hinsdale

Hinsdale · 5 mi · File Apr 2026

$4
list $15 · lowest of 32 lines
3
Uchicago Medicine Adventhealth Glenoaks

Glendale Heights · 16 mi · File Apr 2026

$4
list $15 · lowest of 32 lines
4
Uchicago Medicine Adventhealth Bolingbrook

Bolingbrook · 14 mi · File Apr 2026

$4
list $15 · lowest of 32 lines
5
Northshore University Healthsystem - Evanston Hospital

Evanston · 23 mi · Older file Jan 2025

$8
list $12 · lowest of 10 lines
6
Northwest Community Hospital 1

Arlington Heights · 23 mi · File Mar 2026

$10
list $10 · lowest of 3 lines
7
OSF Little Company of Mary Medical Center

Evergreen Park · 8 mi · File Mar 2026

$20
list $33 · lowest of 37 lines
8
Presence Saint Joseph Hospital - Chicago

Chicago · 16 mi · File Jan 2026

$20
list $62 · lowest of 28 lines
9
Loyola Gottlieb Memorial Hospital

Melrose Park · 10 mi · File Mar 2026

$24
list $125 · lowest of 4 lines
10
Larabida Childrens Hospital I

Chicago · 15 mi · File Apr 2026

$26
list $26
11
Morris Hospital & Healthcare Centers

Morris · 40 mi · File Jun 2026

$26
list $109
12
Northwestern Medicine Mchenry

Mchenry · 45 mi · File Apr 2026

$27
list $39 · lowest of 16 lines
1

What's in the price

The hospital facility fee for CPT 85610. The doctor, anesthesia and lab work usually bill separately.

2

Cash vs. insured

Cash is what you pay without insurance. With insurance you pay a share of the negotiated rate, which can be higher than cash. You may ask for the cash price.

3

What to say on the phone

"I'd like the self-pay price for CPT 85610, in writing, and whether it covers facility, physician and anesthesia."

About prothrombin time (blood clotting test)

CPT 85610 is a prothrombin time (PT), usually reported with INR. It measures how quickly blood clots and is used to monitor warfarin therapy, to check liver function and before surgery. It is a single blood test.

What the price covers

The laboratory analysis only. The blood draw is a separate small charge. Patients on warfarin often have this test monthly, so the price matters more than it looks; finger-stick INR at an anticoagulation clinic or at home is often cheaper.

Why prices vary

A PT/INR costs a laboratory very little to run, yet hospital list prices range from single digits to well over $100. For recurring tests, independent laboratories and anticoagulation clinics are usually far cheaper than hospital labs.

Questions to ask

  • What is the self-pay price for 85610 and the draw fee?
  • If I need this monthly, is there a cheaper standing arrangement?
  • Can I use a home INR meter instead?

Hospitals in Chicago, IL-IN without a price for this procedure

Listed so you know who to call. The reason is what we found on their website.

Questions people ask