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Chromosome Sister-Strand Exchange Study

Iowa 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?

$200

Typical negotiated rate. In Iowa, July 2026.

Insurers have agreed to pay about $200 for this service. The price depends on where it is billed: about $174 from a physician practice, and about $309 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 8 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$174$151 to $347
FacilityA hospital or hospital-owned outpatient department$309$174 to $457

How much rates vary

Facilitymedian $309 · 10th to 90th $132 to $501Professionalmedian $174 · 10th to 90th $132 to $1,148
$200$500$1Kfacility $309professional $174

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
$131.83
Median
$407.38
Typical High
$501.19
Aetna
Setting
Professional
Modifier
Global
Typical Low
$114.82
Median
$151.36
Typical High
$1,148.15
Cigna
Setting
Professional
Modifier
Global
Typical Low
$331.13
Median
$331.13
Typical High
$416.87
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$173.78
Median
$251.19
Typical High
$371.54
Medica
Setting
Facility
Modifier
Global
Typical Low
$173.78
Median
$229.09
Typical High
$537.03
Medica
Setting
Professional
Modifier
Global
Typical Low
$173.78
Median
$281.84
Typical High
$1,230.27
Midlands
Setting
Professional
Modifier
Global
Typical Low
$213.80
Median
$229.09
Typical High
$229.09
Oscar Health
Setting
Professional
Modifier
Global
Typical Low
$169.82
Median
$186.21
Typical High
$371.54
United
Setting
Facility
Modifier
Global
Typical Low
$173.78
Median
$173.78
Typical High
$380.19
United
Setting
Professional
Modifier
Global
Typical Low
$165.96
Median
$186.21
Typical High
$446.68
Wellmark
Setting
Professional
Modifier
Global
Typical Low
$173.78
Median
$173.78
Typical High
$173.78

Where Iowa 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.

Iowa· 19th of 51

$200

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.