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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 July 2026.

How much does Unlisted Thigh Bone Or Knee Operation cost?

$3,162

Typical negotiated rate. In Colorado, July 2026.

Insurers have agreed to pay about $3,162 for this service. The price depends on where it is billed: about $550 from a physician practice, and about $3,388 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$550$162 to $3,020
FacilityA hospital or hospital-owned outpatient department$3,388$2,570 to $5,888

How much rates vary

Facilitymedian $3,388 · 10th to 90th $1,202 to $10,715Professionalmedian $550 · 10th to 90th $71 to $7,244
$100$500$2K$10Kfacility $3,388professional $550

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. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$1,096.48
Median
$3,311.31
Typical High
$8,912.51
Aetna
Setting
Professional
Modifier
Global
Typical Low
$70.79
Median
$549.54
Typical High
$7,244.36
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$2,570.40
Median
$3,801.89
Typical High
$12,589.25
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$10,232.93
Median
$10,232.93
Typical High
$10,232.93
Cigna
Setting
Professional
Modifier
Global
Typical Low
$29,512.09
Median
$29,512.09
Typical High
$29,512.09
Denver HMP
Setting
Facility
Modifier
Global
Typical Low
$891.25
Median
$891.25
Typical High
$891.25
United
Setting
Facility
Modifier
Global
Typical Low
$676.08
Median
$1,479.11
Typical High
$2,691.53
United
Setting
Professional
Modifier
Global
Typical Low
$234.42
Median
$234.42
Typical High
$234.42

Where Colorado sits

The same service costs 27.5 times more in Maine than in West Virginia. 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· 13th of 50

$3,162

ME $13,804WV $501

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.