Billing code 28122: Tarsal bone excisionMedicare rate & RVUs in Alaska

Reports complete excision of a tarsal bone such as a cuboid or cuneiform to treat a symptomatic bony abnormality or other pathology.

CMS RVU26DEffective Oct 1, 20261 payment locality17K Medicare services in 2024

Medicare pays $721.03 for 28122 in the office in Alaska (Alaska*). Which amount applies depends on the service address.

$721.03Office (non-facility)
$526.45Hospital or facility

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

We’ll open 28122 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Alaska
  2. What 28122 covers
  3. By payment locality
  4. How it’s calculated
  5. Payment rules
  6. Similar codes
  7. Related codes
  8. Billing questions
  9. Sources

What 28122 covers

A foot and ankle surgeon, commonly an orthopedic surgeon or podiatrist, reports this procedure when completely excising a tarsal bone other than the talus or calcaneus. Examples include a cuboid or cuneiform. The operation may address a symptomatic bony prominence, deformity, arthritic change, or other bone pathology. The operative report should identify the bone removed and describe complete excision rather than a limited shaving or partial resection.

Select this code by the bone and extent of removal: it is for complete excision of another tarsal bone, not partial excision of the talus or calcaneus. Document the clinical indication, operative findings, and extent of bone removal. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons require 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.

28122 in Alaska*

28122 office and facility rates by payment locality
Payment localityOfficeFacility
Alaska*$721.03$526.45

How the 28122 rate is calculated

Each of 28122’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.

How the rate is built · 28122

RVUs × geographic indexes × conversion factor

Work6.59

6.59 RVUs× 1.000 GPCI

Practice expense10.60

10.60 RVUs× 1.000 GPCI

Malpractice0.75

0.75 RVUs× 1.000 GPCI

Adjusted RVUs

17.9400

Conversion factor

$33.4009

Medicare rate

$599.21

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 28122

28122 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 28122

Tarsal bone excision

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 28122

Tarsal bone excision

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

28122 without 50 · national office

$599.21

Tarsal bone excision

28122-50 · Bilateral: 150%

$898.82

Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).

When to use modifier 50

28122 compared with similar codes

Compare codes · National

4 codes, side by side

  • 28122

    Tarsal bone excision6.59 wRVU

    $599.21

  • 28120

    Bone excision7.13 wRVU

    $686.72+$87.51

  • 28118

    Heel bone resection5.98 wRVU

    $631.95+$32.74

  • 28110

    Metatarsal resection4.11 wRVU

    $467.28−$131.93

How to choose

28120Bone excision
Use 28120 for partial excision of the talus or calcaneus. Use 28122 for complete excision of another tarsal bone, such as a cuboid or cuneiform.
28118Heel bone resection
28118 is specific to ostectomy of the calcaneus. 28122 concerns complete excision of another tarsal bone.
28110Metatarsal resection
28110 covers partial excision of the fifth metatarsal head. 28122 is for complete excision of another tarsal bone, not a metatarsal.

28122 billing questions

How does 28122 differ from 28120?

28122 is for complete excision of another tarsal bone, such as a cuboid or cuneiform. 28120 is for partial excision of the talus or calcaneus.

Does a partial shaving of a cuboid or cuneiform support 28122?

No. The operative documentation should support complete excision of the tarsal bone; a limited resection does not meet that selection criterion.

How should bilateral procedures be reported?

Report bilateral work with modifier 50. CMS pays the bilateral procedure at 150%.

What documentation supports this code?

Identify the tarsal bone removed, the reason for surgery, and the operative extent showing complete excision. The record should distinguish this work from partial excision of the talus or calcaneus.

How does Medicare handle other procedures performed in the same session?

Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the other procedures are paid at 50%.

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

Show the CMS file lines behind this rate
RVUs for 28122PPRRVU2026_Oct_nonQPP.csv, line 3,133 (RVU26D)
Geographic factors for Alaska*GPCI2026.csv, line 5 (RVU26D)

Open CMS sourceHow we calculate rates

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