What is OHIP billing code E670?

E670 is "Re-operation involving open heart procedures - following previous thoracotomy", an OHIP Surgical Assists code from the Ontario Schedule of Benefits (Physician Services).

How much does E670 pay?

The current OHIP fee for E670 is $224.70, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill E670 to OHIP?

E670 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates E670 claims against the Schedule of Benefits rules before submission.

What codes are related to E670?

Codes related to E670 in the Schedule of Benefits include E671.

All codes

E670

E670 – Re-operation involving open heart procedures - following previous thoracotomy

OHIP Surgical Assists Code — CARDIOVASCULAR SURGICAL PROCEDURES · Schedule of Benefits

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A re-operation involving open heart procedures for a patient with a history of a previous thoracotomy. This service fee is applicable when the procedure is performed more than one month after the initial operation. This service includes all common and specific elements of a surgical procedure as defined in the Schedule of Benefits. Assistant and anaesthetist services are also applicable.

When to Use

Use E670 for elective re-operations on the heart or great vessels when the patient has a documented prior thoracotomy performed more than 30 days prior.
Select E670 over standard procedural codes when the surgical approach is significantly complicated by adhesions or anatomical distortion resulting from the previous thoracotomy.

Common Pitfalls

Billing E670 for procedures performed within 30 days of the initial thoracotomy will result in an automatic rejection; ensure the date interval exceeds one full month.
Failing to provide clinical justification for the complexity of the re-entry can lead to audit scrutiny, as E670 is intended to compensate for the increased surgical difficulty of repeat sternotomy or thoracotomy.

Billing Tips

Since E670 lacks defined anaesthesia base units, you must reference a comparable procedure's base units and provide clear documentation to support the time-unit calculation for the anaesthesiologist.
Always confirm that the surgical assistant fee is calculated correctly by referencing the 'Asst: add' designation, and be prepared to use M400B for manual authorization if the claim is flagged for review.

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Provider Fee$224.70

Effective: April 1, 2025

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