N562 – Intradural neurolysis of unusual lesions
OHIP Otolaryngology Code — SPINAL SURGICAL PROCEDURES · Schedule of Benefits
Intradural neurolysis for unusual lesions such as diastematomyelia, tethered conus, or intramedullary haematoma. The fee for this service includes the laminectomy. This service is not eligible for payment when rendered with any other decompressive codes, with the exception of E361 for additional levels. This is a surgical procedure and is eligible for surgeon (A), assistant (B), and anaesthetist (C) suffixes.
When to Use
- Use N562 for the surgical release of a tethered spinal cord, including the necessary laminectomy.
- Use N562 for the management of diastematomyelia or the evacuation of an intramedullary haematoma when intradural neurolysis is the primary procedure.
- Use N562 when the procedure involves complex intradural work that exceeds the scope of standard decompressive laminectomy codes.
Common Pitfalls
- Billing N562 alongside other standard decompressive laminectomy codes will trigger an automatic rejection, as it is restricted to only E361 for additional levels.
- Failing to document the specific 'unusual lesion' (e.g., tethered conus) can lead to audit scrutiny regarding the necessity of the higher-valued N562 code versus standard decompression.
- Attempting to bill additional levels using standard laminectomy codes instead of the designated E361 add-on will result in payment errors.
Billing Tips
- Always append E382 if a spinal duroplasty is performed using autologous or synthetic tissue, as this is a specific, payable add-on for N562.
- Ensure the E383 acute spinal cord injury premium is applied only when the clinical documentation explicitly confirms the acute injury status.
Effective: April 1, 2025
Z. Spinal Surgical Procedures
SPINAL SURGICAL PROCEDURES
Surgical
Spinal Surgical Procedures
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