What is OHIP billing code R502?

R502 is "Total U dento-alveolar osteotomy - mandible", an OHIP Radiology code from the Ontario Schedule of Benefits (Physician Services).

How much does R502 pay?

The current OHIP fee for R502 is $1228.70, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill R502 to OHIP?

R502 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates R502 claims against the Schedule of Benefits rules before submission.

What codes are related to R502?

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

All codes

R502

R502 – Total U dento-alveolar osteotomy - mandible

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

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Total U dento-alveolar osteotomy of the mandible (R502) is a surgical procedure listed under the Musculoskeletal System section of the Schedule. It is categorized under orthognathic surgery. This procedure is eligible for surgeon (suffix A), assistant (suffix B), and anaesthesiologist (suffix C) fees. Assistant services are calculated based on 6 basic units plus time units. Anaesthesia services are calculated based on 15 basic units plus time units.

When to Use

Use R502 for a total dento-alveolar osteotomy of the mandible when the procedure involves the surgical repositioning of the entire dento-alveolar segment.
Select R502 when performing orthognathic surgical correction where the mandibular alveolar process is osteotomized as a single unit, distinguishing it from segmental procedures like R382 or R383.

Common Pitfalls

Billing R502 alongside other mandibular segmental osteotomies (e.g., R382) is often flagged as unbundling; ensure the procedure is truly a total unit osteotomy to avoid rejection.
Attempting to bill for a second surgical assistant without prior written authorization from a medical consultant will result in automatic denial of the assistant's claim.
Failure to document the specific surgical approach and the extent of the osteotomy can lead to audit recovery if the claim is reviewed against the definition of a 'total' versus 'segmental' procedure.

Billing Tips

When multiple orthognathic procedures are performed under the same anaesthetic, ensure the basic units for the assistant and anaesthesiologist are claimed only against the major procedure code as per the Schedule's payment adjustment rules.

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Provider Fee$1,228.70

Surgical Assistant Fee$75.06

Anaesthetist Fee$232.35

Non-Anaesthetist Fee$232.35

Effective: April 1, 2025

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