No office rate
22558 reports the primary lumbar anterior interbody fusion space; 22585 reports an additional space when the applicable primary procedure is also performed.
On this page
CMS RVU26D · Effective 2026-10-01
22585 Anterior fusion Medicare reimbursement rates in Missouri
Reports an additional intervertebral space fused through an anterior interbody approach, alongside the primary code for the first space treated. Compare 22585 office and facility rates across CMS payment localities in Missouri.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 22585 in Missouri?
Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$278.72–$285.09
3 of 3 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Where 22585 pays more and less in Missouri
Spine surgery
About 22585: Additional anterior interbody fusion level
Reports an additional intervertebral space fused through an anterior interbody approach, alongside the primary code for the first space treated.
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.
CMS billing rules for 22585
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Where the value comes from
- Work RVU5.38 · 62%
- Practice expense (office) RVU1.62 · 19%
- Malpractice RVU1.61 · 19%
26.6K
Medicare services in 2024 · #1021 by national volume
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 compared with similar codes
Office rates for Missouri, from the same CMS release.
No office rate
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.
No office rate
22551 describes cervical anterior fusion that includes decompression. 22585 describes an additional interspace with the applicable non-decompressive anterior interbody fusion procedure.
Compare 22585 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
3 of 3 payment localities
Metropolitan Kansas City →
Office / nonfacility
Unavailable
Facility
$283.04
Metropolitan St. Louis →
Office / nonfacility
Unavailable
Facility
$285.09
Rest Of Missouri →
Office / nonfacility
Unavailable
Facility
$278.72
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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 indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
2,08522554,,Arthrd ant ntrbd min dsc crv,A,,17.25,13.35,NA,13.35,,5.80,36.40,36.40,0,090,0.10,0.69,0.21,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,08622556,,Arthrd ant ntrbd min dsc thc,A,,24.08,16.08,NA,16.08,,7.71,47.87,47.87,0,090,0.10,0.69,0.21,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,08722558,,Arthrd ant ntrbd min dsc lum,A,,22.94,13.20,NA,13.20,,6.49,42.63,42.63,0,090,0.10,0.69,0.21,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,08822585,,Arthrd ant ntrbd min dsc ea,A,,5.38,1.62,NA,1.62,,1.61,8.61,8.61,0,ZZZ,0.00,0.00,0.00,0,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,08922586,,Arthrd pre-sac ntrbdy l5-s1,A,,27.42,21.11,NA,21.11,,11.59,60.12,60.12,0,090,0.10,0.69,0.21,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,09022590,,Arthrd pst tq craniocervical,A,,21.22,17.41,NA,17.41,,8.05,46.68,46.68,0,090,0.10,0.69,0.21,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,09122595,,Arthrd pst tq atlas-axis,A,,20.12,17.09,NA,17.09,,7.67,44.88,44.88,0,090,0.10,0.69,0.21,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00