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Chromosome Sister-Strand Exchange Study

Rhode Island 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 Rhode Island, July 2026.

Insurers have agreed to pay about $155 for this service. The price depends on where it is billed: about $155 from a physician practice, and about $447 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 4 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$155$141 to $174
FacilityA hospital or hospital-owned outpatient department$447$209 to $955

How much rates vary

Facilitymedian $447 · 10th to 90th $200 to $977Professionalmedian $155 · 10th to 90th $141 to $234
$50$100$200$500$1Kfacility $447professional $155

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
$245.47
Median
$602.56
Typical High
$1,000.00
Aetna
Setting
Professional
Modifier
Global
Typical Low
$141.25
Median
$141.25
Typical High
$154.88
BCBS
Setting
Facility
Modifier
Global
Typical Low
$181.97
Median
$204.17
Typical High
$302.00
BCBS
Setting
Professional
Modifier
Global
Typical Low
$147.91
Median
$173.78
Typical High
$181.97
Cigna
Setting
Facility
Modifier
Global
Typical Low
$354.81
Median
$524.81
Typical High
$630.96
Cigna
Setting
Professional
Modifier
Global
Typical Low
$107.15
Median
$263.03
Typical High
$323.59
United
Setting
Facility
Modifier
Global
Typical Low
$208.93
Median
$208.93
Typical High
$295.12
United
Setting
Professional
Modifier
Global
Typical Low
$93.33
Median
$173.78
Typical High
$302.00

Where Rhode Island 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.

Rhode Island· 43rd 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.