What is OHIP billing code E321?

E321 is "Posterior/superior canal occlusion", an OHIP Ocular and Aural Surgical Procedures code from the Ontario Schedule of Benefits (Physician Services).

How much does E321 pay?

The current OHIP fee for E321 is $612.70, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill E321 to OHIP?

E321 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates E321 claims against the Schedule of Benefits rules before submission.

All codes

E321

E321 – Posterior/superior canal occlusion

OHIP Ocular and Aural Surgical Procedures Code — AURAL SURGICAL PROCEDURES · Schedule of Benefits

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Posterior/superior canal occlusion, listed under Inner Ear Repair in the Schedule of Benefits. This service is a surgical procedure and is eligible for surgeon, assistant, and anaesthesia fees. • Surgeon (E321A): The fee is for the primary surgeon performing the procedure. • Assistant (E321B): The fee is calculated based on 6 base units plus time units as per -. • Anaesthesia (E321C): The fee is calculated based on 8 base units plus time units as per -.

Referral requiredFrom: Physician, NursePractitioner, DentalSurgeon

All insured services must be documented in appropriate medical records, establishing that the service was provided, is the service for which the account is submitted, and was medically necessary, as per .

Listed with 6 base units for surgical assistant () and 8 base units for anaesthesiologist ().

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