What is OHIP billing code R379?

R379 is "LeFort I advancement - in one segment", an OHIP Radiology code from the Ontario Schedule of Benefits (Physician Services).

How much does R379 pay?

The current OHIP fee for R379 is $803.80, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill R379 to OHIP?

R379 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates R379 claims against the Schedule of Benefits rules before submission.

What codes are related to R379?

Codes related to R379 in the Schedule of Benefits include E961, E962, R538, E963, E964, R567, E965, E966.

All codes

R379

R379 – LeFort I advancement - in one segment

OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits

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R379 is an orthognathic surgical procedure for a LeFort I advancement in one segment. It is listed in the Musculoskeletal System Surgical Procedures section of the Schedule under Skull and Mandible. This surgical service, when performed by a surgeon, includes the procedure itself and associated pre-operative and post-operative care as defined in the Schedule. Additional fees are applicable for procedures involving two (E961) or three (E962) segments. The service is eligible for anaesthesia and surgical assistant services, which are calculated based on basic and time units (see -).

When to Use

Use R379 as the base code for a standard LeFort I osteotomy where the maxilla is advanced as a single, non-segmented block.
Use R379 in conjunction with E961 when the maxilla is split into two segments during the advancement procedure.
Use R379 in conjunction with E962 when the maxilla is split into three distinct segments during the advancement procedure.

Common Pitfalls

Billing R379 alone when the surgical plan involves segmenting the maxilla, which leads to under-billing; ensure E961 or E962 is added as appropriate.
Attempting to bill R379 alongside other unrelated maxillofacial procedures without checking for potential 'incidental' or 'included' service rules in the Schedule.
Failing to document the specific number of segments in the operative report, which is the primary audit trigger for verifying the use of add-on codes E961 or E962.

Billing Tips

Always verify the number of segments created during the osteotomy before submission, as the total fee is significantly impacted by the addition of E961 or E962.
Ensure that the surgical assistant and anaesthesia claims are linked to the base R379 procedure to correctly trigger the calculation of time-based units.

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Provider Fee$803.80

Surgical Assistant Fee$125.10

Anaesthetist Fee$309.80

Non-Anaesthetist Fee$309.80

Effective: April 1, 2025

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