What is OHIP billing code R383?

R383 is "Anterior dento-alveolar osteotomy, maxilla or mandible - two segments", an OHIP Radiology code from the Ontario Schedule of Benefits (Physician Services).

How much does R383 pay?

The current OHIP fee for R383 is $932.10, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill R383 to OHIP?

R383 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates R383 claims against the Schedule of Benefits rules before submission.

What codes are related to R383?

Codes related to R383 in the Schedule of Benefits include R382, R349, R351, R385, R462, R463, R502, R507.

All codes

R383

R383 – Anterior dento-alveolar osteotomy, maxilla or mandible - two segments

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

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R383 is an orthognathic surgical procedure involving an anterior dento-alveolar osteotomy of the maxilla or mandible across two segments. As a surgical procedure, payment is eligible for the surgeon (suffix A), assistant (suffix B), and anaesthetist (suffix C). The fee for the assistant is calculated using 6 base units plus time units. The fee for the anaesthetist is calculated using 15 base units plus time units. For detailed calculation rules, see Assistant services (-) and Anaesthesiologist services (-).

When to Use

Use R383 when performing a formal anterior dento-alveolar osteotomy involving exactly two segments in either the maxilla or mandible.
Select R383 instead of R382 when the procedure specifically requires the mobilization of two distinct segments rather than a single segment osteotomy.

Common Pitfalls

Billing R383 in conjunction with R384 or R385 for the same arch is often flagged as an audit risk for unbundling if the procedures are considered part of the same surgical approach.
Failure to document the specific number of segments mobilized can lead to claim rejection if the Ministry identifies a discrepancy between the code and the operative report.

Billing Tips

Ensure the operative report explicitly details the two-segment osteotomy to justify the higher complexity compared to single-segment procedures like R382.

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Provider Fee$932.10

Surgical Assistant Fee$75.06

Anaesthetist Fee$232.35

Non-Anaesthetist Fee$232.35

Effective: April 1, 2025

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