Breathing Response To Carbon Dioxide Test

Kentucky rates for HCPCS 94400

A test of how strongly your breathing increases when the carbon dioxide level in the air you breathe is raised. You breathe through a mouthpiece while the gas mixture is adjusted and the depth and rate of your breathing are recorded, showing how sensitively the body's breathing control responds.

Rates data updated October 2026.

How much rates vary

Professionalmedian $63 · 10th to 90th $63 to $112

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 $63.10 Median $63.10 Typical High $112.20	Professional	None	$63.10	$63.10	$112.20