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R654 – Pericranial flap to orbit or face - unilateral

OHIP Musculoskeletal System Surgical Procedures Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits

This service is for the unilateral creation and transposition of a pericranial flap to the orbit or face. The pericranium is the membrane covering the outer surface of the skull. • Surgical Fee (`A` Suffix): Flat fee as listed in the Schedule. • Assistant Fee (`B` Suffix): This service does not have a listed assistant basic unit value. As per the rules on , to claim for an assistant, the service must be submitted as M400B and requires authorization by a medical consultant with a letter of explanation from the surgeon. The basic units for this claim are then derived from the anaesthesia value (6 basic units) plus time units as per -. • Anaesthesia Fee (`C` Suffix): Calculated using 6 basic units plus time units as defined in . • Add-on: If this procedure is performed in conjunction with a coronal approach for the main operation, add E973. () • Bilateral Procedure: The bilateral equivalent of this procedure is billed using R655. This service is also eligible for various premiums, including age-based premiums for patients under 16 (), after-hours premiums for non-elective surgery (, , ), and the trauma premium (E420) if applicable criteria are met ().
For surgical assistant services, where no basic unit is listed for the assistant, payment requires authorization by a medical consultant following submission of a letter from the surgeon outlining the reason the assistant was required. The claim must be submitted using fee code M400B.

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