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E660
E660 – Epicardial E.P.S. mapping
OHIP Surgical Assists Code — CARDIOVASCULAR SURGICAL PROCEDURES · Schedule of Benefits
Epicardial Electrophysiologic Study (E.P.S.) mapping is an add-on procedure performed during open-heart surgery. It involves mapping the electrical activity on the outer surface (epicardium) of the heart to identify abnormal electrical pathways or sources of arrhythmias. This code is intended to be billed in addition to the primary cardiac surgical procedure, such as a cardiotomy (R712, R713, R714).
When to Use
- Use E660 when performing epicardial mapping to identify an arrhythmia focus during a primary open-heart procedure, such as a cardiotomy (R712, R713, or R714).
- Use this code when the mapping is a distinct, additional procedural step required to guide the surgical intervention beyond the standard scope of the primary procedure.
Common Pitfalls
- Do not bill E660 with R711, as epicardial mapping is considered an inherent component of the division of an accessory conduction pathway.
- Avoid billing E660 if the mapping is already included in the global fee of the primary surgical procedure being performed.
Billing Tips
- Ensure E660 is submitted as an add-on code alongside the primary surgical procedure code to avoid rejection for missing a base procedure.
- Apply age-based surgical premiums (e.g., AGE_PREMIUM_LT1Y) to the E660 fee if the patient meets the specific age criteria for the primary surgery.
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