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Unlisted Thigh Bone Or Knee Operation

Colorado rates for HCPCS 27599

Covers an operation on the thigh bone or the knee for which there is no standard named service. The surgeon submits a written report describing exactly what was done, and the insurer prices it by comparison with similar named operations. It is used only when no named thigh or knee procedure matches the work performed.

Rates data updated October 2026.

How much does Unlisted Thigh Bone Or Knee Operation cost?

$3,020

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $3,020 for this service. The price depends on where it is billed: about $6,026 from a physician practice, and about $2,754 from a hospital or other facility.

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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$6,026$3,388 to $7,762
FacilityA hospital or hospital-owned outpatient department$2,754$1,202 to $5,129

How much rates vary

Facilitymedian $2,754 · 10th to 90th $513 to $10,715Professionalmedian $6,026 · 10th to 90th $234 to $10,233
$200$1K$5K$20Kfacility $2,754professional $6,026

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
Aetna
Setting
Facility
Modifier
None
Typical Low
$1,148.15
Median
$3,388.44
Typical High
$8,709.64
Aetna
Setting
Professional
Modifier
None
Typical Low
$3,388.44
Median
$6,025.60
Typical High
$7,762.47
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$2,290.87
Median
$3,548.13
Typical High
$20,892.96
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$10,232.93
Median
$10,232.93
Typical High
$10,232.93
Cigna
Setting
Facility
Modifier
None
Typical Low
$645.65
Median
$2,290.87
Typical High
$4,786.30
Cigna
Setting
Professional
Modifier
None
Typical Low
$29,512.09
Median
$29,512.09
Typical High
$29,512.09
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$154.88
Median
$154.88
Typical High
$346.74
United
Setting
Facility
Modifier
None
Typical Low
$239.88
Median
$616.60
Typical High
$1,905.46
United
Setting
Professional
Modifier
None
Typical Low
$234.42
Median
$234.42
Typical High
$234.42

Where Colorado sits

The same service costs 74.1 times more in Alaska 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.

Colorado· 3rd of 51

$3,020

AK $5,888MT $79.43

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.