Billing code 22558: Anterior fusionMedicare rate & RVUs in Ohio
Reports anterior interbody fusion at one lumbar interspace, including the limited disc removal needed to prepare the space for fusion.
CMS doesn’t publish an office rate for 22558 in Ohio.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 22558 covers
This service fuses a lumbar motion segment through an anterior approach, placing bone graft or another fusion material between the vertebral bodies. The surgeon removes enough disc material to prepare the interspace; that limited preparation is included. Orthopedic spine surgeons and neurosurgeons commonly perform the operation in a hospital operating room for lumbar instability or degenerative disc disease.
Report one unit for the treated interspace. The operative report should support the lumbar level, anterior approach, fusion, and any additional work such as decompression; extensive decompression is distinct from the limited disc preparation included here. A separately reportable interbody device may be coded with the fusion. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Bilateral adjustment is inappropriate. Assistant-at-surgery and co-surgeon payment may be allowed; 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.
22558 in Ohio
| Payment locality | Office | Facility |
|---|---|---|
| Ohio | Unavailable | $1,387.26 |
How the 22558 rate is calculated
Each of 22558’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 · 22558
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 22.94Practice expense 13.20Malpractice 6.49
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 22558
22558 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 22558
Anterior fusion
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 2 | Permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.69/0.21 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 22558
Anterior fusion
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.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
22558 without 51 · national facility
$1,423.88
Anterior fusion
22558-51 · Second procedure: 50%
$711.94
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
22558 compared with similar codes
Compare codes
22558 vs 22585 vs 22554 vs 22556 vs 22612: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 22585Anterior fusion
- 22558 represents the first lumbar interspace; 22585 is the add-on for each additional interspace in the same fusion session.
- 22554Cervical fusion
- Both describe anterior interbody fusion, but 22554 is for the cervical spine and 22558 is for the lumbar spine.
- 22556Thoracic fusion
- 22556 applies to anterior interbody fusion in the thoracic spine; 22558 applies to the lumbar spine.
- 22612Spinal fusion
- 22558 is an anterior interbody lumbar fusion. 22612 describes lumbar fusion by a posterior or posterolateral approach.
22558 billing questions
When should 22558 be reported instead of 22554?
Use 22558 for anterior interbody fusion at a lumbar interspace. Code 22554 describes the corresponding cervical procedure.
Does 22558 include disc removal?
It includes the limited discectomy needed to prepare the interspace for fusion. Do not treat that preparation as a separate decompressive discectomy.
How is an additional lumbar interspace reported?
Report 22558 for the first lumbar interspace and consider add-on code 22585 for each additional interspace fused, when supported by the operative record.
Can an interbody device be reported separately?
A separately reportable interbody biomechanical device may be reported with 22558 using 22853. The operative documentation should identify the device and its placement.
Should modifier 50 be used for this procedure?
No. CMS identifies bilateral adjustment as inappropriate for 22558; report the lumbar interspace treated rather than treating the fusion as a bilateral service.
What payment rules affect the surgical team and follow-up?
The code has a 90-day global period that includes the day-before preoperative visit and related postoperative care. CMS permits assistant-at-surgery and co-surgeon payment, but not team-surgery payment.
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
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