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Z504
Z504 – Excision of lesion
OHIP Digestive System Surgical Procedures Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
A surgical procedure involving the excision of a lesion from the lip. This service is listed in the Digestive System Surgical Procedures section of the Schedule. Assistant services (Z504B) are payable with 6 basic units. Anaesthesia services (Z504C) are payable with 6 basic units. Time units for both assistant and anaesthesia are calculated based on the duration of the procedure. An add-on fee, E542, is payable when this procedure is performed outside of a hospital setting.
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