CPT code 20938: Spinal bone graft, structural autograft, separate incision2026 Medicare rate & RVUs in Mississippi

In Mississippi, Medicare pays $150.37 for 20938 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 20938 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 20938 covers

During spinal fusion, the surgeon places a structural piece of the patient’s own bone to support the fusion. The graft is harvested through a separate skin or fascial incision; an iliac crest bone block is a typical example. Orthopedic spine surgeons and neurosurgeons may use this service during cervical or lumbar fusion when structural support is needed. The graft is distinct from small local bone fragments collected through the operative exposure and from bone prepared as morselized graft.

Report 20938 only with an eligible primary spinal procedure, not as a stand-alone service. Documentation should identify the separate harvest incision, the autologous graft’s structural use, and the spinal procedure it supports. CMS treats payment for this add-on as part of the primary procedure’s global period. The code includes the graft harvest, so do not separately report another graft-harvest service for the same bone.

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 Mississippi compares for 20938

Across 109 of 109 payment localities, the facility rate for 20938 runs from $139.75 in Wisconsin to $213.71 in Miami, FL. Mississippi pays $150.37. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

20938 rates by state

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

See 20938 in every payment locality

How the 20938 rate is calculated

Each of 20938’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 20938

The CMS indicators that decide how 20938 is paid alongside other services.

What modifiers do to the payment

When to use modifier 80

Codes related to 20938

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

How 20938 has changed in Mississippi

Price 20938 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

• Abbeville
• Aberdeen
• Ackerman
• Agricola
• Alcorn State University
• Algoma
• Alligator
• Amory

Browse all communities in Mississippi

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