N153 – Meningioma and other tumourous lesions - infratentorial or basal
OHIP Otolaryngology Code — NEUROLOGICAL SURGICAL PROCEDURES · Schedule of Benefits
This service is a surgical procedure on the neurological system (brain). The fee for this service includes the common and specific elements applicable to surgical procedures as outlined in the Schedule of Benefits. Note: The specific title and detailed description for N153 are not provided in the source documents; this description is based on general rules for surgical procedures. As per , the specific elements for the surgical team generally include: A. Preparing or supervising the preparation of the patient for the procedure. B. Performing the procedure by any method, or assisting another physician in the performance of the procedure(s), assisting with the carrying out of all recovery room procedures and the transfer of the patient to the recovery room, and any ongoing monitoring and detention rendered during the immediate post-operative and recovery period, when indicated. C. Making arrangements for any related assessments, procedures, or therapy, (including obtaining any specimens from the patient) and/or interpreting results. D. When medically indicated, monitoring the condition of the patient for post-procedure follow-up until the first post-operative visit. E. Discussion with, and providing any advice and information, including prescribing therapy to the patient or the patient's representative, whether by telephone or otherwise, on matters related to the service.
When to Use
- Use N153 for the surgical excision of infratentorial or basal meningiomas where the approach is distinct from supratentorial procedures.
- Apply this code when performing tumorous lesion removal in the posterior fossa or basal regions, ensuring the anatomical location matches the 'infratentorial or basal' definition.
Common Pitfalls
- Billing N153 concurrently with N200 or R380 without manual review documentation will result in automatic rejection.
- Attempting to claim a second surgical assistant fee without prior medical consultant authorization, as N153 is not on the GP90 pre-approved list.
- Failing to include the E903 team fee modifier when performing acoustic neuroma surgery via the same approach, which is the only designated add-on for this specific procedure.
Billing Tips
- Ensure all manual review claims for N153 include detailed operative reports that justify why N200 or R380 were necessary in addition to the primary procedure.
- Always verify if the procedure qualifies for the E903 team fee to maximize reimbursement for complex acoustic neuroma cases.
Effective: April 1, 2026
X. Neurological Surgical Procedures
NEUROLOGICAL SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
The specific description for this surgical procedure code was not provided in the source documents. The information is derived from general rules applicable to surgical procedures in the Schedule of Benefits.
Assistant services for this procedure may be payable using fee code M400B with authorization from a medical consultant if basic units are not explicitly listed for assistants in the Schedule. See for details.
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