N124 – Functional stereotaxy
OHIP Otolaryngology Code — NEUROLOGICAL SURGICAL PROCEDURES · Schedule of Benefits
Payable for neuroablative and implantation therapy for treatment of movement disorders of basal ganglia and connections (e.g. Parkinson's disease). This service must include all of the following: pre-operative planning, application of stereotactic frame, intra-operative imaging, micro-electrode placement and recording, ablation of lesion and/or electrode implantation. As a surgical procedure, it also includes all common elements of insured services as described in -, and specific elements for the surgeon, assistant (), and anaesthetist ().
When to Use
- Use N124 for the surgical implantation of deep brain stimulation (DBS) electrodes or radiofrequency ablation for Parkinson's disease or essential tremor.
- Select N124 when the procedure encompasses the full stereotactic workflow, including frame application, micro-electrode recording, and final target ablation or lead placement.
Common Pitfalls
- Billing N123 in addition to N124 will result in an automatic rejection or payment at nil, as N123 is considered inclusive of the N124 surgical package.
- Failure to document the specific intra-operative micro-electrode recording and stereotactic frame application will trigger an audit recovery, as these are mandatory components of the N124 fee.
Billing Tips
- Ensure the operative report explicitly lists all five mandatory components—planning, frame application, imaging, recording, and ablation/implantation—to satisfy the X4:744 documentation requirements.
Effective: April 1, 2026
X. Neurological Surgical Procedures
NEUROLOGICAL SURGICAL PROCEDURES
Neurological Surgical Procedures
The service must include pre-operative planning, application of stereotactic frame, intra-operative imaging, micro-electrode placement and recording, and ablation of lesion and/or electrode implantation.
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