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Chromosome Sister-Strand Exchange Study

Tennessee rates for HCPCS 88245

Cells from a sample are grown in the laboratory until they divide, and their chromosomes are then examined to count how often the two matching strands of a chromosome have swapped pieces with each other. Everyone shows some of this swapping; a count well above the usual range points to an inherited condition in which cells cannot keep their DNA in good repair, such as Bloom syndrome. A finding like that leads on to targeted genetic testing and to regular checks of blood counts and general health.

Rates data updated July 2026.

How much does Chromosome Sister-Strand Exchange Study cost?

$155

Typical negotiated rate. In Tennessee, July 2026.

Insurers have agreed to pay about $155 for this service. The price depends on where it is billed: about $138 from a physician practice, and about $363 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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 5 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$138$129 to $191
FacilityA hospital or hospital-owned outpatient department$363$162 to $631

How much rates vary

Facilitymedian $363 · 10th to 90th $129 to $692Professionalmedian $138 · 10th to 90th $115 to $234
$50$100$200$500$1Kfacility $363professional $138

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$128.82
Median
$489.78
Typical High
$691.83
Aetna
Setting
Professional
Modifier
Global
Typical Low
$128.82
Median
$138.04
Typical High
$199.53
BCBS
Setting
Professional
Modifier
Global
Typical Low
$89.13
Median
$190.55
Typical High
$204.17
Cigna
Setting
Facility
Modifier
Global
Typical Low
$131.83
Median
$416.87
Typical High
$724.44
Cigna
Setting
Professional
Modifier
Global
Typical Low
$79.43
Median
$114.82
Typical High
$288.40
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$831.76
Median
$831.76
Typical High
$831.76
Lucent Health
Setting
Professional
Modifier
Global
Typical Low
$1,288.25
Median
$1,288.25
Typical High
$1,288.25
United
Setting
Facility
Modifier
Global
Typical Low
$77.62
Median
$173.78
Typical High
$181.97
United
Setting
Professional
Modifier
Global
Typical Low
$104.71
Median
$173.78
Typical High
$363.08

Where Tennessee sits

The same service costs 3.4 times more in Alaska than in Delaware. 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.

Tennessee· 40th of 51

$155

AK $389DE $115

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.