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Blood Clotting Time Test (PTT)

Maryland rates for HCPCS 85730

This blood test measures how long it takes a blood sample to clot using a specific laboratory method, which helps evaluate the blood's clotting ability. It is commonly used to check for bleeding disorders, monitor certain blood-thinning medications, or evaluate before surgery.

Rates data updated October 2026.

How much does Blood Clotting Time Test (PTT) cost?

$4.47

Typical negotiated rate. In Maryland, October 2026.

Insurers have agreed to pay about $4.47 for this service. The price depends on where it is billed: about $4.47 from a physician practice, and about $5.62 from a hospital or other facility.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$4.47$3.89 to $5.13
FacilityA hospital or hospital-owned outpatient department$5.62$4.17 to $7.59

How much rates vary

Facilitymedian $6 · 10th to 90th $2 to $15Professionalmedian $4 · 10th to 90th $3 to $8
$2$5$10facility $6professional $4

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$4.47
Median
$6.03
Typical High
$8.91
Aetna
Setting
Professional
Modifier
None
Typical Low
$3.31
Median
$4.47
Typical High
$6.76
CareFirst
Setting
Professional
Modifier
None
Typical Low
$4.37
Median
$4.79
Typical High
$7.08
Cigna
Setting
Facility
Modifier
None
Typical Low
$3.16
Median
$4.17
Typical High
$7.76
Cigna
Setting
Professional
Modifier
None
Typical Low
$3.16
Median
$6.17
Typical High
$14.45
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$6.03
Median
$6.92
Typical High
$10.00
United
Setting
Facility
Modifier
None
Typical Low
$2.00
Median
$2.00
Typical High
$15.14
United
Setting
Professional
Modifier
None
Typical Low
$2.69
Median
$3.47
Typical High
$5.01
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$2.34
Median
$5.89
Typical High
$5.89
2 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$2.24
Median
$2.24
Typical High
$2.24
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$0.89
Median
$0.89
Typical High
$0.89

Where Maryland sits

The same service costs 14.5 times more in Minnesota than in Maryland. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Maryland· 51st of 51

$4.47

MN $64.57MD $4.47

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.