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N577
N577 – Intradural rhizotomy anterior/posterior
OHIP Otolaryngology Code — SPINAL SURGICAL PROCEDURES · Schedule of Benefits
Intradural rhizotomy is a surgical procedure involving the cutting of nerve roots within the dural sac. This procedure can be performed on either the anterior or posterior roots, on one or both sides (unilateral/bilateral), and can involve any number of nerve roots. As per the note on page of the Schedule (), N577 is not eligible for payment when rendered with any service in the Spinal Surgical Procedures section.
When to Use
- Use N577 for intradural rhizotomy procedures performed for pain management or spasticity, provided the procedure is not part of a broader spinal reconstruction or fusion.
- Use N577 when the procedure is performed as a standalone surgical intervention, ensuring it is not bundled with any other spinal surgical procedures.
Common Pitfalls
- Billing N577 alongside any other code from the Spinal Surgical Procedures section will trigger an automatic rejection due to the explicit exclusion note in the Schedule.
- Attempting to claim N577 in conjunction with spinal decompression or stabilization procedures is a common audit risk, as these are classified under the restricted Spinal Surgical Procedures section.
Billing Tips
- Ensure the procedure is documented as an isolated intradural rhizotomy to justify the use of N577, as any concurrent spinal instrumentation or decompression will invalidate the claim.
Provider Fee$1,276.65
Surgical Assistant Fee$100.08
Anaesthetist Fee$154.90
Non-Anaesthetist Fee$154.90
Effective: April 1, 2025
Category
Z. Spinal Surgical Procedures
Subcategory
SPINAL SURGICAL PROCEDURES
Service Type
Surgical
Code Classes
Spinal Surgical Procedures
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