What is OHIP billing code R433?

R433 is "Temporomandibular joint - unilateral", an OHIP Radiology code from the Ontario Schedule of Benefits (Physician Services).

How much does R433 pay?

The current OHIP fee for R433 is $349.30, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill R433 to OHIP?

R433 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates R433 claims against the Schedule of Benefits rules before submission.

What codes are related to R433?

Codes related to R433 in the Schedule of Benefits include R272, R278, R279, R280, R284, R428.

All codes

R433

R433 – Temporomandibular joint - unilateral

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

Ask AI Bill This Code — Sign Up Free

Unilateral arthroplasty of the temporomandibular joint. This is a surgical procedure listed in the Musculoskeletal System section of the Schedule of Benefits under Skull and Mandible. This service has 6 assistant base units and 10 anaesthesia base units.

When to Use

Use R433 for unilateral surgical arthroplasty of the temporomandibular joint when the procedure is performed as a distinct, standalone surgical intervention.
Use this code for unilateral cases where the pathology is confined to one side, distinguishing it from bilateral procedures that may require different coding logic or multiple procedure rules.

Common Pitfalls

Attempting to bill R433 alongside other major mandibular procedures without applying the multiple procedure rule, which may lead to automatic claim adjustments or rejections.
Failing to account for the specific assistant and anaesthesia base units (6 and 10 respectively) when calculating total surgical fees, as these are fixed and not subject to arbitrary estimation.
Incorrectly applying after-hours premiums (E409/E410) to elective cases; ensure the procedure meets the non-elective criteria or was delayed by an emergency to avoid audit triggers.

Billing Tips

Always verify if the procedure qualifies for age-based premiums (e.g., AGE_PREMIUM_UNDER_16_YEARS) as these are percentage increases applied directly to the R433 base fee.
When performing bilateral procedures, ensure you are referencing the Schedule of Benefits rules regarding the major procedure hierarchy to correctly calculate assistant and anaesthesia base units.

Have a specific question? Ask our billing assistant

Provider Fee$349.30

Surgical Assistant Fee$75.06

Anaesthetist Fee$154.90

Non-Anaesthetist Fee$154.90

Effective: April 1, 2025

Ready to bill this code?

SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.

Get Started Free Already have an account? Sign in