Billing code 22585: Anterior fusionMedicare rate & RVUs in Utah
Reports an additional intervertebral space fused through an anterior interbody approach, alongside the primary code for the first space treated.
CMS doesn’t publish an office rate for 22585 in Utah.
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 22585 covers
22585 represents fusion at an additional intervertebral space using an anterior interbody approach. The surgeon removes disc material as needed to prepare the space for fusion; this code describes preparation for fusion, not a separate nerve-root or spinal-cord decompression. It may be used for additional cervical, thoracic, or lumbar spaces when the corresponding primary anterior interbody fusion procedure is performed. Spine surgeons, including orthopedic surgeons and neurosurgeons, typically perform these operations in an operating room.
Report 22585 only with the appropriate primary code for the first interspace, such as 22554, 22556, or 22558. The operative report should identify each fused interspace and support that 22585 represents an additional space beyond the one reported by the primary code. CMS classifies 22585 as an add-on code: it is not billed by itself, and its payment falls within the primary procedure’s global period.
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.
22585 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $278.85 |
How the 22585 rate is calculated
Each of 22585’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 · 22585
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 5.38Practice expense 1.62Malpractice 1.61
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 22585
The CMS indicators that decide how 22585 is paid alongside other services.
CMS payment indicators · 22585
Anterior fusion
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| 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. |
What modifiers do to the payment
Modifier 80 · payment effect
With and without the modifier
22585 without 80 · national facility
$287.58
Anterior fusion
22585-80 · Assistant: 16%
$46.01
A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.
22585 compared with similar codes
Compare codes
22585 vs 22558 vs 22552 vs 22551: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 22558Anterior fusion
- 22558 reports the primary lumbar anterior interbody fusion space; 22585 reports an additional space when the applicable primary procedure is also performed.
- 22552Cervical fusion
- 22552 is used for an additional level with 22551, the cervical fusion code that includes decompression. 22585 is used with the applicable anterior interbody fusion primary code for a different procedure structure.
- 22551ACDF
- 22551 describes cervical anterior fusion that includes decompression. 22585 describes an additional interspace with the applicable non-decompressive anterior interbody fusion procedure.
22585 billing questions
Can 22585 be billed by itself?
No. Report it only with the appropriate primary anterior interbody fusion code for the first treated interspace.
Which primary codes may be paired with 22585?
Use the primary code that matches the region and procedure, such as 22554 for cervical, 22556 for thoracic, or 22558 for lumbar fusion.
How many units should be reported?
Report an additional unit for each separately documented interspace beyond the first, following the applicable coding instructions.
How is 22585 different from 22552?
22585 is used for an additional space with the anterior interbody fusion procedures represented by 22554, 22556, or 22558. 22552 is the additional-level code associated with the decompressive cervical fusion code 22551.
Does 22585 have its own global period?
CMS identifies it as an add-on code paid within the global period of the primary procedure.
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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