Summary & Overview
CPT 22855: Anterior Spinal Instrumentation Removal
CPT code 22855 designates the surgical removal of previously implanted spinal instrumentation from the anterior (front) aspect of the spine. This procedure is clinically important when implanted devices become infected, painful, rejected, or mechanically fail, and it carries implications for surgical planning, perioperative resource use, and coding consistency across payers. Nationally, anterior hardware removal is a relatively infrequent but high-resource surgical event that can drive inpatient stays, operative time, and potential revision procedures.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for CPT code 22855, common sites of service, and the typical service type. The publication also summarizes payer coverage considerations, common claim modifiers and coding practice patterns, and benchmarks for utilization where available. Attention is given to documentation elements that support medical necessity for hardware removal and to potential policy updates that affect prior authorization and coverage determinations.
This summary provides clinicians, billing staff, and policy analysts a practical reference to understand what CPT code 22855 represents, who pays for these services, and what to review when preparing or adjudicating claims for anterior spinal instrumentation removal.
Billing Code Overview
CPT code 22855 describes the removal of previously implanted spinal instrumentation from the anterior (front) portion of the spine. The procedure is performed when an implanted device requires extraction due to infection, pain, device rejection, or mechanical failure.
Service type: Surgical removal of anterior spinal instrumentation
Typical site of service: Inpatient hospital or ambulatory surgical center, performed in an operating room under appropriate anesthesia for anterior spinal access.
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient with a prior anterior lumbar interbody fusion (ALIF) presents with increasing anterior wound drainage, fever, and persistent axial pain six months after implantation. Imaging demonstrates loosening of the anterior plate and peri-implant lucency consistent with infection and hardware failure. The clinical workflow begins with preoperative evaluation including laboratory studies (CBC, CRP, ESR), spine-focused imaging (X-ray, CT, or MRI as indicated), and infectious disease consultation if infection is suspected. The surgeon documents indication for removal, discusses risks and benefits with the patient, obtains informed consent, and schedules the patient for removal of anterior spinal instrumentation under general anesthesia in an operating room. Intraoperatively, the anterior approach is used to expose and remove the previously implanted hardware; irrigation and debridement are performed if infection is present, and cultures are obtained. Postoperative care includes pain control, wound management, targeted antibiotics if infection was present, and follow-up imaging. Typical site of service is an acute care hospital operating room; service type is surgical — removal of implanted spinal instrumentation from the anterior spine.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required is substantially greater than usual (extensive scar tissue, complex extraction). |