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2025 CPT code 22633

Arthrodesis of a single lumbar interspace using a combined posterior or posterolateral and posterior interbody technique, including laminectomy and/or discectomy to prepare the interspace (excluding decompression).

Follow all applicable CPT coding guidelines for spine surgery.Specific guidelines regarding bone graft and instrumentation reporting should be strictly adhered to.Consult the official CPT manual and NCCI edits for up-to-date information.

Modifiers 51 (multiple procedures) may be used when this code is used in conjunction with other procedures.Modifier 62 (two surgeons) can be used in accordance with the specific guidelines.Consult the current CPT guidelines.

The procedure is medically necessary to address symptomatic instability and/or chronic pain resulting from degenerative disc disease, spondylolisthesis, trauma, or other spinal pathologies.Conservative treatment options should be documented and deemed insufficient before surgical intervention.

The orthopedic surgeon or spine surgeon is responsible for the surgical procedure, including incision, exposure, preparation of the interspace (laminectomy and/or discectomy), placement of bone graft (if applicable), fusion and closure. Anesthesiologist is responsible for anesthesia management.Other surgical team members may assist.

IMPORTANT:22612, 22634 (for additional interspaces), 20930-20938 (bone graft procedures), 22840-22855, 22859 (instrumentation procedures).Modifier 51 may be appended if performed with other procedures; modifier 62 is not allowed with bone graft or instrumentation codes.

In simple words: This surgery permanently joins two bones in your lower back to stabilize the area and relieve pain. It involves multiple surgical approaches and may include removing some bone or disc material to help with the fusion process.Additional procedures, like bone grafting or using screws and plates, might be necessary and billed separately.

This CPT code, 22633, represents surgical arthrodesis (fusion) of a single lumbar vertebral interspace.The procedure involves a combined posterior or posterolateral approach and a posterior interbody technique.Laminectomy and/or discectomy are included to prepare the interspace for fusion, but decompression is not the primary objective.The code does not include separate reporting for bone grafting or instrumentation; these are reported using additional codes as needed.This procedure aims to achieve permanent fusion of the vertebrae, typically to address instability or pain.

Example 1: A 55-year-old patient with severe degenerative disc disease at L4-L5 presents with chronic lower back pain and instability. The surgeon performs a posterior lumbar interbody fusion with a combined posterior and posterolateral approach, including laminectomy to prepare the interspace. Bone graft is harvested from the iliac crest and placed into the interbody space.Internal fixation devices may be used., A 60-year-old patient with spondylolisthesis (slipping of one vertebra over another) at L5-S1 undergoes a posterior lumbar interbody fusion with a posterior and posterolateral approach, discectomy, and bone graft.The surgeon utilizes instrumentation (screws and rods)., A 40-year-old patient following a traumatic lumbar fracture requiring surgical stabilization undergoes this procedure to achieve fusion and enhance stability.The surgeon uses a combined posterior and posterolateral approach along with autograft bone.

** Always refer to the most current CPT coding guidelines and payer-specific rules for accurate coding and reimbursement.

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