Summary & Overview
CPT 20936: Spinal Autograft Harvest and Placement
CPT code 20936 covers the surgical use of an autograft harvested from the patient and placed into bony defects during spinal procedures. This code documents intraoperative harvesting of the patient’s own bone from the same incision and its placement to support fusion or repair. Nationally, autograft procedures remain a core component of spinal fusion and reconstruction, affecting surgical resource use, operative time, and coding for bundled spine services.
Key payers in common coverage analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the code, an outline of typical sites of service and service type, and an overview of common modifiers encountered in claim submissions. The publication highlights benchmarking and payment policy themes relevant to hospital and ambulatory surgical settings, and summarizes coding considerations and potential documentation focal points.
The content is intended to inform coding professionals, hospital billing teams, and policy analysts about the clinical application of CPT code 20936, expected service settings, and the payer landscape relevant to national billing and reimbursement discussions.
Billing Code Overview
CPT code 20936 describes the use of an autograft harvested from the patient to fill bony defects during spinal surgery. The provider extracts bone from the patient — taken from the same surgical incision — and places the autogenous graft in the spine to promote fusion or repair of osseous defects.
Service Type: Autograft for spinal bony defect repair
Typical Site of Service: Hospital operating room or ambulatory surgery center
Clinical & Coding Specifications
Clinical Context
A 62-year-old male with multilevel lumbar degenerative disc disease and symptomatic spinal stenosis fails conservative care including physical therapy and epidural steroid injections. He presents for a posterior lumbar decompression and instrumented fusion (lumbar fusion) to relieve neurogenic claudication and stabilize the affected motion segment. During the procedure the surgeon harvests autologous cancellous bone from the iliac crest through the same midline incision and places the autograft into the posterolateral gutters and interbody space to promote arthrodesis. The intraoperative workflow includes general anesthesia, exposure of the posterior elements, decompression (laminectomy/foraminotomy as indicated), placement of interbody device or cages when appropriate, preparation of fusion beds, collection of autograft from the exposed local bone (spinous processes/lamina/iliac crest contiguous with incision), graft packing into fusion sites, and placement of pedicle screws and rods for stabilization. Typical perioperative documentation includes site of autograft harvest, amount and type of graft used (autograft only vs autograft plus extenders), operative time, estimated blood loss, and any intraoperative complications. The typical site of service is an inpatient hospital operating room or ambulatory surgery center for less complex single-level cases; postoperative care includes routine inpatient observation or same-day discharge protocols depending on medical risk and payer guidelines.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services |