All codes
N108
N108 – Obliteration of intracranial dural arteriovenous fistula
OHIP Otolaryngology Code — NEUROLOGICAL SURGICAL PROCEDURES · Schedule of Benefits
This surgical procedure involves the obliteration of an intracranial dural arteriovenous fistula, which includes carotid cavernous fistulas. The approach involves performing a craniotomy and may combine both cervical and intracranial surgical techniques to address the vascular malformation. This service includes the work of the surgeon, assistant, and anaesthetist, billed with suffixes A, B, and C respectively.
When to Use
- Use N108 for the surgical obliteration of an intracranial dural arteriovenous fistula via craniotomy, including carotid cavernous fistula repairs.
- Select this code when the procedure involves a formal craniotomy, distinguishing it from endovascular approaches which are billed under different interventional radiology codes.
Common Pitfalls
- Billing N108 for endovascular embolization is a common error; ensure the procedure strictly involves the described open surgical approach.
- Attempting to bill for a second surgical assistant without prior authorization will result in rejection, as N108 is not on the pre-approved list for multiple assistants.
Billing Tips
- Always append the correct suffix (A for surgeon, B for assistant, C for anaesthetist) to ensure the claim is processed against the appropriate fee schedule component.
- If the procedure is performed as an emergency, ensure the start time is clearly documented to support the application of after-hours premiums like E409 or E410.
Provider Fee$1,229.55
Surgical Assistant Fee$187.65
Anaesthetist Fee$232.35
Non-Anaesthetist Fee$232.35
Effective: April 1, 2025
Category
X. Neurological Surgical Procedures
Subcategory
NEUROLOGICAL SURGICAL PROCEDURES
Service Type
Surgical
Code Classes
Neurological Surgical Procedures
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.