Brain Artery Ultrasound Reactivity Test

Nevada 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 rates vary

Professionalmedian $309 · 10th to 90th $200 to $427

Distribution of negotiated rates across all payers (price axis is log-scale). 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
United Setting Professional Modifier None Typical Low $199.53 Median $309.03 Typical High $426.58	Professional	None	$199.53	$309.03	$426.58