go back

Nitrous Oxide Sedation

Washington, DC rates for HCPCS D9230

Breathing in a mild sedative gas, often called laughing gas, mixed with oxygen through a small mask over the nose during a dental visit. It helps you relax and feel more comfortable during treatment, and its effects wear off quickly once the mask is removed.

Rates data updated July 2026.

Facilitymedian $15 · 10th–90th $15$150%50%100%$15Professionalmedian $16 · 10th–90th $14$280%20%40%10th90th$16$20.0$50.0

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Small sample; interpret with caution. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$15.49
Median
$15.49
Typical High
$15.49
Aetna
Setting
Professional
Modifier
Global
Typical Low
$13.80
Median
$16.22
Typical High
$17.38
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$32.36
Median
$32.36
Typical High
$36.31
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$17.78
Median
$19.05
Typical High
$51.29