Every billing code / CPT 20931 / Seattle Children's Hospital
CPT 20931 at Seattle Children's Hospital
Arthrodesis - Spine
Seattle Children's Hospital, Seattle
This name is the CMS category the code belongs to (CMS's Restructured BETOS Classification System), shared with similar codes. The official CPT description belongs to the American Medical Association and isn't shown.
What Seattle Children's Hospital publishes for this code: during a hospital stay
Seattle Children's Hospital’s prices for CPT 20931, during a hospital stay| Who pays | Hospital’s fee (lowest – highest) | Doctor’s fee the hospital lists |
|---|
| Commercial insuranceInsurer rates | $102 – $370at least 58 plans | — |
|---|
| Medicaid managed careInsurer rates | $40.07 – $68.46at least 9 plans | — |
|---|
| Medicaid (state program)Insurer rates | $38.90 – $62.24at least 1 plan | — |
|---|
| Other government programInsurer rates | $81.88 – $131at least 1 plan | — |
|---|
| UnknownInsurer rates | $38.90 – $288at least 21 plans | — |
|---|
| Cash pricePaying yourself, without insurance | $289 – $463 | — |
|---|
| List priceBefore any discount; few people pay it | $289 – $463 | — |
|---|
Lowest and highest amounts Seattle Children's Hospital lists for this code during a hospital stay, including lines it lists for both settings or without saying which. This is one line of a bill; most care brings several.
Bills to expect
The hospital’s fee is the price above. Doctors usually send their own bills. Their amounts here are what original Medicare allows in Seattle (King County) for 2026, and a private-plan estimate of 118% to 179% of that (the range found across studies of what insurers pay doctors). Those are estimates, not quotes.
Bills to expect for CPT 20931 at Seattle Children's Hospital| Bill | What it’s for | Original Medicare allows | Private plan estimate |
|---|
| Hospital's feeThe hospital | The service | — | The price above |
|---|
Original Medicare amounts are only for people on original Medicare. Your share depends on your plan’s deductible, copay and coinsurance.
Compare CPT 20931 at every Washington hospital, with Medicare’s reference amounts.