Brain Artery Ultrasound Reactivity Test

Colorado rates for HCPCS 93890

An ultrasound study of the arteries inside the head that measures how well they can widen when challenged — by breathing a carbon dioxide mixture or by a medicine that dilates vessels. A probe held against the skull tracks the speed of blood flow before and after the challenge, showing how much spare capacity the brain's circulation still has.

Rates data updated October 2026.

How much does Brain Artery Ultrasound Reactivity Test cost?

$525

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $525 for this service. Most negotiated rates run $427 to $955.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

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 3 insurance carriers under federal price transparency rules.

How much rates vary

Professionalmedian $525 · 10th to 90th $282 to $4,571

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	Facility/Professional	Modifier	Typical Low	Median	Typical High
Cigna Setting Professional Modifier None Typical Low $851.14 Median $851.14 Typical High $954.99	Professional	None	$851.14	$851.14	$954.99
Kaiser Permanente Setting Professional Modifier None Typical Low $407.38 Median $524.81 Typical High $4,570.88	Professional	None	$407.38	$524.81	$4,570.88
United Setting Professional Modifier None Typical Low $199.53 Median $309.03 Typical High $426.58	Professional	None	$199.53	$309.03	$426.58

Where Colorado sits

The same service costs 9.5 times more in Wisconsin than in Florida. 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.

Colorado· 19th of 44

$525

WI $1,778FL $186

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.