Summary & Overview
CPT 22101: Excision of Posterior Thoracic Vertebral Bony Lesion
CPT code 22101 denotes surgical excision of a portion of the posterior element of a single thoracic vertebra to remove a contained bony lesion. This code is used for targeted spine bone surgery addressing benign or focal destructive lesions within one thoracic vertebral body’s posterior structures. Nationally, procedures coded with 22101 have implications for surgical services, inpatient and outpatient facility billing, and specialty spine care delivery.
Key payers addressed in typical analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, typical sites of service, and what to expect in billing practice. The publication outlines benchmark metrics where available, common modifiers and billing considerations, and related coding for spine procedures when present. It also highlights policy or coverage themes that commonly affect access and reimbursement for specialized spinal surgery services.
This piece is intended to orient surgeons, coders, and policy analysts to the clinical intent of CPT code 22101, the payer landscape commonly relevant to its use, and the types of operational and billing detail to review when this code appears on a claim. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 22101 describes a surgical procedure in which the provider excises part of the posterior element of a single thoracic vertebra to remove a bony lesion contained within that bone. This procedure is a type of spinal bone surgery focused on removing diseased or abnormal bone in the upper back.
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Service type: Surgical excision of a thoracic vertebral posterior element for removal of a localized bony lesion
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Typical site of service: Hospital operating room or ambulatory surgical center, depending on patient condition and facility capabilities
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient presents with progressive localized thoracic back pain, focal tenderness, and imaging revealing an isolated lytic bony lesion within the posterior element of a single thoracic vertebra. Neurologic exam is non-focal, and CT/MRI demonstrates a contained lesion limited to the spinous process/lamina without gross epidural extension. The surgical plan is a posterior approach excision of the bony lesion via partial removal of the posterior element of the involved thoracic vertebra to obtain diagnostic tissue and achieve local control.
Preoperative workflow includes history and physical, imaging review (CT and MRI), informed consent, anesthesia evaluation, and perioperative antibiotics. Intraoperatively, the patient is positioned prone, a midline posterior incision is made, subperiosteal dissection exposes the lamina and spinous process, and the surgeon excises the bony lesion (partial hemilaminectomy or laminotomy as required) with preservation of spinal stability when possible. Specimens are sent for pathology. Postoperative workflow includes recovery in PACU, pain control, wound monitoring, activity restrictions, and pathology follow-up to guide further oncologic or infectious management if indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier (default) | Use when no special modifier applies. |