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Chromosome Sister-Strand Exchange Study

Maryland 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?

$141

Typical negotiated rate. In Maryland, July 2026.

Insurers have agreed to pay about $141 for this service. Most negotiated rates run $129 to $174.

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.

How much rates vary

Facilitymedian $72 · 10th to 90th $72 to $132Professionalmedian $141 · 10th to 90th $123 to $575
$100$200$500$1Kfacility $72professional $141

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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
Global
Typical Low
$125.89
Median
$141.25
Typical High
$575.44
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$117.49
Median
$125.89
Typical High
$158.49
Cigna
Setting
Professional
Modifier
Global
Typical Low
$95.50
Median
$128.82
Typical High
$302.00
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$173.78
Median
$208.93
Typical High
$288.40
United
Setting
Facility
Modifier
Global
Typical Low
$72.44
Median
$72.44
Typical High
$131.83
United
Setting
Professional
Modifier
Global
Typical Low
$104.71
Median
$154.88
Typical High
$281.84
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$87.10
Median
$169.82
Typical High
$169.82

Where Maryland 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.

Maryland· 46th of 51

$141

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.