Summary & Overview
CPT 62330: Lumbar Laminotomy with Ligamentum Flavum Decompression, Bilateral
CPT code 62330 represents a lumbar spinal decompression procedure that partially removes the ligamentum flavum with a laminotomy at the first lumbar interspace, performed bilaterally and including epidurography and imaging guidance. This operative code is clinically important because degenerative thickening of the ligamentum flavum is a common contributor to lumbar spinal stenosis and radiculopathy; procedures captured by this code are part of the national surgical management pathway for selected patients with compressive neural elements.
Key payers in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The content addresses how the code is classified and used across typical payer settings and describes the clinical and procedural context relevant to coverage and billing workflows.
Readers will find concise benchmarks and policy-relevant notes on coding scope, typical site-of-service placement (hospital outpatient department and ambulatory surgery centers), and procedural components that distinguish this code from related lumbar decompression entries. The summary highlights common documentation elements tied to the service description and flags when additional codes or modifiers may be applicable. Data not available in the input is noted where specific payer edits, fee benchmarks, or associated taxonomies and ICD-10 diagnoses would normally appear.
Billing Code Overview
CPT code 62330 describes a surgical decompression of the lumbar spine through partial removal of the ligamentum flavum with creation of an access opening in the lamina (a laminotomy) at the first lumbar interspace, performed bilaterally. The procedure includes epidurography and use of imaging guidance such as fluoroscopy or CT.
Service type: Surgical spinal decompression / minimally invasive lumbar decompression
Typical site of service: Hospital outpatient department or ambulatory surgery center, with intraoperative imaging capability.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient presents with progressive low back pain radiating to the bilateral lower extremities, neurogenic claudication, and intermittent numbness consistent with lumbar spinal stenosis. Conservative care including physical therapy, oral anti-inflammatories, and epidural steroid injection provided limited relief. MRI of the lumbar spine demonstrates hypertrophy of the ligamentum flavum with moderate central canal stenosis at the L4–L5 interspace and compression of the cauda equina. The spine surgeon schedules a minimally invasive decompressive laminotomy with partial removal of the ligamentum flavum at the affected level using intraoperative fluoroscopic guidance and epidurography to confirm epidural space localization. The procedure is performed in an ambulatory surgery center or hospital operating room under monitored anesthesia care or general anesthesia. The clinical workflow includes preoperative evaluation and imaging review, informed consent, intraoperative fluoroscopic localization, laminotomy and partial ligamentum flavum resection, epidurography to document epidural contrast flow, hemostasis, closure, and postoperative recovery with a short observation period prior to discharge or inpatient admission if indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
24 | Unrelated evaluation and management service by the same physician during a postoperative period | Use when an unrelated E/M encounter occurs during the global period after 62330. |