CPT code 22632 denotes an additional-level lumbar spinal arthrodesis (spinal fusion) performed during the same operative encounter after an initial fusion. This code captures a common and high-cost surgical intervention used to treat persistent lower back pain and structural spinal pathology such as herniated disks, spinal stenosis, or traumatic injuries. Accurate coding of additional-level fusions is critical for clinical documentation, claims processing, and national spending assessments because spinal fusion procedures are among the more resource-intensive orthopedic and neurosurgical interventions.

Key payers evaluated in national analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find: an overview of clinical indications and procedure scope for CPT code 22632; typical settings where the service is delivered; common modifiers and billing considerations (listed separately); and context useful for interpreting utilization and reimbursement patterns. Where input data is not provided, the summary notes that those specific items are not available in the input.

This publication is intended for health policy analysts, billing professionals, and clinical leaders seeking concise, national-level context on CPT code 22632, its clinical role in lumbar fusion care, and the payer landscape relevant to reimbursement and utilization review.