R723 – Total correction transposition of great vessels
OHIP Radiology Code — CARDIOVASCULAR SURGICAL PROCEDURES · Schedule of Benefits
Total correction of transposition of the great vessels. - Surgeon (A): The fee is for the surgical procedure. - Assistant (B): The amount payable is calculated by adding 18 basic units to time units. - Anaesthesiologist (C): The amount payable is calculated by adding 28 basic units to time units. For detailed rules on calculating assistant and anaesthesia fees, including time units, refer to the 'Surgical Assistants' Services' section beginning on page and the 'Anaesthesiologists' Services' section beginning on page .
When to Use
- Use R723 specifically for the complete surgical repair of transposition of the great vessels (TGA/TGV).
- Do not use R723 for palliative procedures like balloon atrial septostomy or pulmonary artery banding, which are billed under different cardiovascular codes.
Common Pitfalls
- Failing to apply the mandatory age-based percentage premiums (e.g., 30% for patients <30 days) which are critical for neonatal cardiac surgery billing.
- Forgetting to include the Injury Severity Score (ISS) in the medical record when attempting to claim the E420 trauma premium for emergency repairs.
Billing Tips
- A second surgical assistant is automatically eligible for R723 without prior authorization, so ensure both assistants submit their claims to avoid payment delays.
- Always verify the start time of the procedure to correctly apply the E400B/E401B assistant premiums or E400C/E401C anaesthesia premiums, as these are based on the case commencement time.
Effective: April 1, 2026
Q. Cardiovascular Surgical Procedures
CARDIOVASCULAR SURGICAL PROCEDURES
Surgical
Cardiovascular Surgical Procedures
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.