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R770
R770 – Correction of cor triatriatum
OHIP Radiology Code — CARDIOVASCULAR SURGICAL PROCEDURES · Schedule of Benefits
Correction of cor triatriatum is a cardiovascular surgical procedure. The service, when performed by a surgeon (suffix A), includes all aspects of the operation and routine post-operative care. When billed by an anaesthetist (suffix C), it includes pre-anaesthetic evaluation, the anaesthetic procedure, and post-anaesthetic follow-up as described in the Schedule of Benefits (). When billed by a surgical assistant (suffix B), it includes preparing the patient, assisting in the surgery and recovery room, and post-procedure monitoring as described in the Schedule of Benefits ().
When to Use
- Use R770 specifically for the surgical correction of congenital cor triatriatum where a membrane or fibromuscular ridge is excised to restore normal left or right atrial flow.
- Select R770 when the procedure is performed as a primary cardiac repair, distinguishing it from R769 or R771 which cover different congenital cardiac anomalies.
Common Pitfalls
- Billing R770 alongside other major cardiac procedures without checking for Schedule of Benefits 'multiple procedure' rules, which may trigger automatic reductions or rejections.
- Failing to document the specific anatomical findings of the cor triatriatum, which can lead to audit recovery if the claim is flagged for clinical necessity review.
Billing Tips
- Ensure the appropriate suffix (A for surgeon, B for assistant, C for anaesthetist) is appended to R770, as the fee structure and eligibility for after-hours premiums differ significantly by role.
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