CPT code 28304: Midfoot osteotomy, without bone graft2026 Medicare rate & RVUs

Medicare pays $871.76 for 28304 nationally in the office and $581.51 in a hospital or facility. Local office rates run $775.26–$1,111.21.

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

What 28304 covers

This service involves a planned cut in a midfoot tarsal bone, such as a cuneiform, navicular, or cuboid, to change its alignment or shape. Orthopedic foot-and-ankle surgeons and podiatrists perform these procedures to address structural deformity or abnormal foot mechanics, commonly in an operating room. The operated bone distinguishes this service from osteotomy of the calcaneus, talus, or a metatarsal. A tarsal osteotomy with autograft is reported with a different code.

Select this code when the operative work is a midfoot tarsal osteotomy without the autograft service represented by 28305. The operative report should identify the bone and side, the condition being corrected, the osteotomy and correction performed, and whether graft was used. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For same-session multiple procedures, the highest-valued procedure is paid in full and the others at 50%. Modifier 50 bilateral procedures are paid at 150%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is 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.

Where 28304 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

28304 rates by state

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

How the 28304 rate is calculated

Each of 28304’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 28304

28304 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 50

28304 compared with similar codes

How to choose

28305Midfoot osteotomyWith autograft

Choose 28304 for a midfoot tarsal osteotomy without the autograft service. Choose 28305 when the tarsal osteotomy includes autograft.

28300Heel osteotomyCalcaneus realignment

28300 is for an osteotomy of the calcaneus. Use 28304 when the operated bone is a midfoot tarsal bone instead.

28306Metatarsal osteotomyFirst metatarsal

28306 applies to first-metatarsal osteotomy. 28304 is for a midfoot tarsal bone, not a metatarsal.

Codes related to 28304

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

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