CPT code 20690: External fixation, unilateral, single-plane frame2026 Medicare rate & RVUs in Mississippi

In Mississippi, Medicare pays $502.60 for 20690 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 20690 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 20690 covers

An orthopedic surgeon applies a unilateral external frame, anchoring it to bone with pins or wires arranged in one plane. The frame can stabilize a fracture or an osteotomy while the bone heals. This service is typically performed in an operating room or another surgical setting; the defining feature is the single-plane fixation configuration, not the number of pins or wires.

Choose this code when the operative record supports application of a single-plane frame, rather than a multiplanar construct. Document the treated side and bone, the indication, and the frame configuration. The 90-day global period includes the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service; 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 Mississippi compares for 20690

Across 109 of 109 payment localities, the facility rate for 20690 runs from $489.25 in Arkansas to $675.92 in Alaska. Mississippi pays $502.60. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

20690 rates by state

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

See 20690 in every payment locality

How the 20690 rate is calculated

Each of 20690’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 20690

20690 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 51

Codes related to 20690

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

How 20690 has changed in Mississippi

Price 20690 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