CPT code 20937: Spinal bone graft, morselized, separate incision2026 Medicare rate & RVUs in Connecticut

In Connecticut, Medicare pays $156.97 for 20937 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 20937 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 20937 covers

During spinal fusion, the surgeon harvests the patient’s own bone through a separate skin or fascial incision, prepares it as small fragments, and places it at the fusion site to support bone healing. The iliac crest is a common harvest site. Orthopedic spine surgeons and neurosurgeons perform this work in the operating room as part of cervical, thoracic, or lumbar arthrodesis.

Report this add-on only with an eligible primary spinal procedure. It represents obtaining and preparing the patient’s morselized bone, not a standalone service. Documentation should identify the autologous graft, its morselized form, the separate harvest incision and site, and placement at the fusion site. CMS classifies 20937 as an add-on code: it must be billed with a primary procedure, and its payment falls within that procedure’s global period.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

How Connecticut compares for 20937

Across 109 of 109 payment localities, the facility rate for 20937 runs from $127.78 in Wisconsin to $188.88 in Miami, FL. Connecticut pays $156.97. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

20937 rates by state

Office rate range in each state. Select a state to see its payment localities.

See 20937 in every payment locality

How the 20937 rate is calculated

Each of 20937’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 20937

The CMS indicators that decide how 20937 is paid alongside other services.

What modifiers do to the payment

When to use modifier 80

Codes related to 20937

Related codes aren’t interchangeable: bill the code that matches the service performed.

How 20937 has changed in Connecticut

Price 20937 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

• Ansonia
• Ball Pond
• Baltic
• Bantam
• Bethel
• Bethlehem Village
• Bigelow Corners
• Blue Hills

Browse all communities in Connecticut

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates