CPT 22212: Thoracic Vertebral Osteotomy, Posterior or Posterolateral Approach
CPT code 22212 denotes a thoracic vertebral osteotomy performed through a posterior or posterolateral approach to realign the thoracic spine and correct spinal deformities. This code captures a complex orthopedic/neurosurgical procedure that can be central to treatment pathways for scoliosis, kyphosis, and other structural deformities. It matters nationally because spinal osteotomies carry substantial clinical risk, resource utilization, and variation in payer coverage and reimbursement across commercial and public plans.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for the procedure, typical sites of service, and the kinds of benchmarks and policy factors that influence coverage and billing for major spine surgeries. The publication highlights common billing considerations, coding adjacency, and typical modifiers used with complex operative spinal procedures (listed separately), and outlines where readers can expect variation in prior authorization, bundling rules, and inpatient versus outpatient payment policies.
The report is designed for clinicians, coding professionals, and revenue managers seeking concise guidance on the clinical purpose of CPT code 22212, payer coverage landscape, and operational issues that affect reimbursement and claims adjudication for thoracic spinal osteotomy procedures nationwide.
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Billing Code Overview
CPT code 22212 describes an osteotomy of a thoracic vertebra, a surgical bony incision performed on an upper-back vertebra to realign the spine and correct spinal deformity. The procedure is performed via a posterior or posterolateral approach, meaning the surgeon accesses the vertebra from the back or back-and-side of the patient.
Service type: Surgical — spinal osteotomy / corrective spine surgery
Typical site of service: Hospital operating room or specialized surgical center (inpatient or outpatient surgical setting depending on clinical circumstances)
Clinical & Coding Specifications
Clinical Context
A 52-year-old patient with progressive thoracic kyphoscoliosis and chronic mid-back pain refractory to conservative care is scheduled for a posterior thoracic vertebral osteotomy (CPT 22212) to correct spinal alignment. The preoperative workflow includes spine surgeon evaluation, imaging (standing scoliosis radiographs, CT for osseous detail, and MRI to assess neural elements), informed consent discussing risks (neurologic injury, blood loss, infection), medical clearance, and preadmission testing. On the day of surgery the patient is brought to the operating room, positioned prone on a radiolucent frame, and intraoperative neuromonitoring is initiated. The surgeon performs a posterior or posterolateral approach to the affected thoracic vertebra, carries out the controlled bony incision and wedge resection to mobilize and realign the segment, and may place instrumentation (pedicle screws and rods) and perform fusion as indicated. Postoperative care includes immediate neurologic assessment, pain control, wound care, activity restrictions, and outpatient follow-up with imaging to document alignment and fusion progress. Typical facility billing occurs on an inpatient or ambulatory surgery center claim depending on patient comorbidities and extent of correction. Payors commonly involved include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work required to perform the osteotomy is substantially greater than typically required (eg, severe deformity, extensive adhesions) and documentation supports increased work. |
24 | Unrelated evaluation and management service during a postoperative period | Data not available in the input. |
25 | Significant, separately identifiable E/M service on the same day as a procedure | Data not available in the input. |
50 | Bilateral procedure | Use when identical osteotomies are performed on both sides of the thoracic spine during the same operative session (apply only if clinically appropriate). |
51 | Multiple procedures | Use when CPT 22212 is billed in addition to other distinct spinal procedure codes on the same operative date. |
52 | Reduced services | Use when the osteotomy is intentionally reduced or not completed as described in the full code description and documentation supports partial performance. |
53 | Discontinued procedure | Use when the osteotomy is begun but discontinued due to extenuating circumstances or patient safety concerns. |
62 | Two surgeons | Use when two surgeons work together as primary surgeons, each performing distinct portions of the osteotomy and both documented. |
63 | Procedure performed on infants less than 4 kg | Not typically applicable to adult thoracic osteotomies but included for completeness when applicable to small pediatric patients. |
78 | Unplanned return to the operating room for a related procedure during the postoperative period | Use when an urgent re-operation related to the osteotomy is performed during the same global period. |
79 | Unrelated procedure or service during the postoperative period | Use when a separate unrelated procedure is performed during the global period. |
80 | Assistant surgeon | Use when a qualified assistant surgeon participates and documentation supports assistant involvement. |
81 | Minimum assistant surgeon | Use when a minimal assistant surgeon contribution is documented and payer accepts this modifier. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| Data not available in the input. | Orthopedic Spine Surgery | Spine-focused orthopedic surgeons commonly perform posterior thoracic osteotomy procedures. |
| Data not available in the input. | Neurosurgery | Neurosurgeons with spine specialty perform thoracic osteotomies, especially when neural decompression is anticipated. |
| Data not available in the input. | Physical Medicine and Rehabilitation (PM&R) | PM&R physicians are not primary operators but are commonly involved in pre- and postoperative care and rehabilitation planning. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
M41.36 | Other idiopathic scoliosis, thoracic region | Common indication for thoracic osteotomy to correct structural scoliotic deformity involving the thoracic spine. |
M40.06 | Kyphosis, thoracic region | Thoracic osteotomy may be used to correct fixed kyphotic deformity causing pain or neurologic compromise. |
M43.06 | Spondylolisthesis, thoracic region | In select cases with malalignment, an osteotomy may be part of the corrective strategy. |
M48.06 | Spinal stenosis, thoracic region | When stenosis is associated with deformity, osteotomy plus decompression can address alignment and neural compression. |
M51.26 | Other intervertebral disc displacement, thoracic region | Degenerative changes contributing to deformity may be addressed during corrective surgery. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
22842 | Posterior segmental instrumentation (eg, pedicle fixation), 3 to 6 vertebral segments | Often placed during the same operation to stabilize the spine after osteotomy and facilitate fusion and deformity correction. |
22612 | Arthrodesis, posterior or posterolateral technique, single level thoracic | May be performed in conjunction with osteotomy to achieve spinal fusion at the treated level. |
63030 | Laminectomy, thoracic, one vertebral segment; with decompression of spinal cord and/or nerve roots (as part of decompression) | Performed when decompression of neural elements is required in addition to osteotomy. |
20930 | Allograft, morselized, for spine surgery | Bone grafting materials used to augment fusion after osteotomy and instrumentation. |
61885 | Insertion of temporary neurophysiologic monitoring electrodes | Intraoperative neuromonitoring (somatosensory and motor evoked potentials) is commonly used during osteotomy to assess spinal cord integrity. |