22634 Arthrd cmbn 1ntrspc each additional
Also known as: Combined fusion add-on, Additional 360-degree fusion
Arthrodesis, posterior or posterolateral combined with anterior/anterolateral approach, lumbar; each additional interspaces.
In Plain Language
Extra spine fusion from both sides; Additional circumferential fusion
Clinical Context
Add-on code for multi-level combined anterior-posterior lumbar fusion; used when extensive fusion needed for complex deformity or instability.
RVU Breakdown
| Work RVU | 7.76 |
| Total RVU | 7.76 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 7.76, this code ranks in the 49th percentile among Surgery codes — 1.0x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 22634?
CPT 22634 (Arthrd cmbn 1ntrspc each additional) is a Surgery code. Arthrodesis, posterior or posterolateral combined with anterior/anterolateral approach, lumbar; each additional interspaces.
What is the wRVU value for CPT 22634?
The work RVU for CPT 22634 is 7.76. This code is primarily used by Spine Surgery, Orthopedic Surgery.
When is CPT 22634 used?
Add-on code for multi-level combined anterior-posterior lumbar fusion; used when extensive fusion needed for complex deformity or instability.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against MGMA data — all in one app.
CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.