CPT code 21813: Rib fracture fixation, seven or more ribs2026 Medicare rate & RVUs in Tennessee

In Tennessee, Medicare pays $805.38 for 21813 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 21813 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 21813 covers

This code describes operative stabilization of seven or more fractured ribs using internal fixation. Thoracic or trauma surgeons typically perform the procedure in a hospital operating room for patients whose rib injuries require surgical stabilization. Thoracoscopic visualization, when used during the operation, is included in the service. The code is selected by the number of ribs treated with fixation, not simply the total number of fractured ribs documented.

The operative report should identify the ribs treated and describe the fixation performed. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. When another procedure is performed in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% multiple-procedure reduction. For bilateral reporting with modifier 50, CMS pays this procedure at 150%. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted.

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 Tennessee compares for 21813

Across 109 of 109 payment localities, the facility rate for 21813 runs from $778.25 in Wisconsin to $1,133.13 in Miami, FL. Tennessee pays $805.38. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

21813 rates by state

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

See 21813 in every payment locality

How the 21813 rate is calculated

Each of 21813’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 21813

The CMS indicators that decide how 21813 is paid alongside other services.

What modifiers do to the payment

When to use modifier 50

Codes related to 21813

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

How 21813 has changed in Tennessee

Price 21813 for an earlier date of service

Where the Tennessee rate applies

Tennessee is a Medicare payment area, not a city. Our Census mapping connects it to 504 cities and communities in Tennessee. Some span more than one payment area; confirm with the service ZIP.

• Adams
• Adamsville
• Alamo
• Alcoa
• Alexandria
• Algood
• Allardt
• Altamont

Browse all communities in Tennessee

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