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Sinus Surgery to Open the Cheek Sinus

South Dakota rates for HCPCS 31256

Using a thin telescope passed up the nostril, the surgeon enlarges the natural drainage opening of the maxillary sinus, the air pocket behind the cheek, so mucus can escape and the sinus can ventilate properly. No cuts are made on the face. It is used for repeated or long-standing sinus infection that has not settled with medication.

Rates data updated July 2026.

How much does Sinus Surgery to Open the Cheek Sinus cost?

$339

Typical facility fee. In South Dakota, July 2026.

Insurers have agreed to pay about $339 for this service. Most negotiated rates run $275 to $355.

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 $447 · 10th to 90th $178 to $4,365Professionalmedian $331 · 10th to 90th $234 to $398
$200$500$1K$2K$5Kfacility $447professional $331

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
Facility
Modifier
Global
Typical Low
$177.83
Median
$3,548.13
Typical High
$4,365.16
Aetna
Setting
Facility
Modifier
50 · Both sides
Typical Low
$977.24
Median
$3,467.37
Typical High
$5,011.87
Avera
Setting
Facility
Modifier
Global
Typical Low
$173.78
Median
$354.81
Typical High
$3,630.78
Medica
Setting
Facility
Modifier
Global
Typical Low
$218.78
Median
$371.54
Typical High
$524.81
Medica
Setting
Facility
Modifier
50 · Both sides
Typical Low
$7,244.36
Median
$7,244.36
Typical High
$16,982.44
Midlands
Setting
Professional
Modifier
Global
Typical Low
$371.54
Median
$398.11
Typical High
$416.87
Sanford Health Plan
Setting
Professional
Modifier
Global
Typical Low
$234.42
Median
$331.13
Typical High
$354.81
United
Setting
Facility
Modifier
Global
Typical Low
$2,691.53
Median
$2,691.53
Typical High
$7,585.78

Where South Dakota sits

The same service costs 8709.6 times more in Indiana than in Maine. 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.

South Dakota· 47th of 51

$339

IN $8,128ME $0.93

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.