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Endoscopic Sinus Surgery, Full Ethmoid Clearance

Missouri rates for HCPCS 31255

This is a minimally invasive procedure performed with a thin lighted scope inserted through the nostril to open and clear the small air-filled spaces between the eyes, known as the ethmoid sinuses. It clears the full depth of these sinus spaces, front and back, rather than just the forward portion. It is generally used for chronic sinus infections or blockages that have not responded to medication.

Rates data updated October 2026.

How much does Endoscopic Sinus Surgery, Full Ethmoid Clearance cost?

$4,240

Typical total for the visit. In Missouri, October 2026.

Insurers have agreed to pay about $4,240 for this procedure. That total is two separate charges: $525 to the doctor who performs it, and $3,715 to the hospital or surgery center where it takes place. Done somewhere without a facility charge, you pay only the first.

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 7 insurance carriers under federal price transparency rules.

What's inside this number

Part of the billTypicalRange
Physician feeThe doctor who performs it$525$380 to $851
Facility feeThe hospital or surgery center$3,715$2,188 to $6,166

How much rates vary

Facilitymedian $3,715 · 10th to 90th $1,175 to $12,589Professionalmedian $525 · 10th to 90th $316 to $1,202
$500$1K$2K$5K$10K$20Kfacility $3,715professional $525

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
Aetna
Setting
Facility
Modifier
None
Typical Low
$489.78
Median
$5,623.41
Typical High
$10,715.19
Aetna
Setting
Professional
Modifier
None
Typical Low
$295.12
Median
$323.59
Typical High
$1,230.27
Ambetter
Setting
Professional
Modifier
None
Typical Low
$173.78
Median
$173.78
Typical High
$218.78
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$1,445.44
Median
$3,801.89
Typical High
$10,471.29
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$354.81
Median
$562.34
Typical High
$870.96
Anthem BCBS
Setting
Professional
Modifier
50 · Both sides
Typical Low
$524.81
Median
$851.14
Typical High
$1,288.25
BCBS Kansas City
Setting
Professional
Modifier
None
Typical Low
$275.42
Median
$309.03
Typical High
$457.09
Cigna
Setting
Facility
Modifier
None
Typical Low
$977.24
Median
$3,235.94
Typical High
$12,589.25
Cigna
Setting
Professional
Modifier
None
Typical Low
$309.03
Median
$416.87
Typical High
$812.83
Medica
Setting
Facility
Modifier
None
Typical Low
$724.44
Median
$3,715.35
Typical High
$26,302.68
Medica
Setting
Professional
Modifier
None
Typical Low
$416.87
Median
$660.69
Typical High
$6,165.95
United
Setting
Facility
Modifier
None
Typical Low
$1,000.00
Median
$3,548.13
Typical High
$7,585.78
United
Setting
Professional
Modifier
None
Typical Low
$363.08
Median
$489.78
Typical High
$691.83
5 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$147.91
Median
$162.18
Typical High
$177.83
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$58.88
Median
$64.57
Typical High
$70.79
Aetna
Setting
Professional
Modifier
54 · Surgery only
Typical Low
$223.87
Median
$245.47
Typical High
$269.15
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$44.67
Median
$48.98
Typical High
$53.70
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$29.51
Median
$32.36
Typical High
$35.48

Where Missouri sits

The same service costs 11.4 times more in Colorado than in Montana. 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.

Physician feeFacility fee

Missouri· 21st of 51

$4,240

$525 physician + $3,715 facility

CO $11,205MT $980

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.