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E234
E234 – Canthotomy
OHIP Surgical Assists Code — OCULAR SURGICAL PROCEDURES · Schedule of Benefits
Canthotomy
When to Use
- Use E234 for an emergency lateral canthotomy performed to relieve orbital compartment syndrome.
- Use this code when the procedure is performed as a standalone sight-saving intervention in an urgent care or emergency setting.
Common Pitfalls
- Do not bill E234 in combination with E140 or E141, as these are explicitly restricted by the Schedule of Benefits.
- Avoid billing E234 if the procedure is considered an integral component of a more extensive orbital surgery, as it may be flagged as unbundling.
Billing Tips
- Ensure the clinical indication for the emergency decompression is clearly stated in the operative report to justify the procedure code in the event of an audit.
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