Summary & Overview
CPT 21610: Thoracic Spine Rib and Transverse Process Resection
CPT code 21610 denotes a surgical decompression procedure in which a segment of rib and the transverse process of the vertebra are removed to relieve spinal nerve compression and associated back pain. This code captures a targeted thoracic spine operation that is clinically significant because it addresses mechanical neural compression that can cause debilitating pain and neurologic symptoms. Nationally, accurate coding for this procedure affects utilization measurement, surgical quality reporting, and reimbursement for complex spine care.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for CPT code 21610, typical sites of service, and the service type. The publication summarizes common billing modifiers and expected payer interactions, provides benchmarking context where available, and outlines relevant policy and coding considerations that influence claim adjudication and provider documentation. The content is intended to help coding professionals, practice administrators, and policy analysts understand how this procedure is classified and billed, and what to expect when managing claims for thoracic spine decompression with rib and transverse process resection.
Billing Code Overview
CPT code 21610 describes a surgical procedure in which the provider removes a portion of a rib and the transverse process of the adjacent vertebra to relieve back pain caused by compression of spinal nerves. This operation is a decompressive procedure on the thoracic spine involving resection of bone to decompress neural elements.
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Service type: Surgical decompression of thoracic spine involving rib and transverse process resection
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Typical site of service: Hospital operating room or inpatient surgical center
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient presents with progressive lower thoracic back pain radiating to the flank and posterior thorax with objective neurologic signs of nerve root compression after conservative management fails. Imaging (MRI/CT) demonstrates foraminal stenosis with rib head or transverse process involvement compressing a thoracic spinal nerve root. The surgical team schedules a thoracic partial rib resection and transverse process removal to decompress the affected nerve root. Preoperative workflow includes history and physical, anesthesia evaluation, informed consent, preoperative imaging review, and perioperative antibiotics. The procedure is performed in an operating room under general anesthesia with intraoperative neuromonitoring as indicated. Postoperative care includes recovery room monitoring, analgesia, wound care, discharge instructions, and scheduled follow-up for neurologic and wound assessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work, time, or complexity substantially exceeds normal for 21610 due to extensive dissection or unexpected pathology |
52 |