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Z765
Z765 – Excision of obstructive tumour or stricture through colonoscopy - 2 cm or greater
OHIP Psychiatric Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This procedure involves the excision of an obstructive tumour or stricture of the intestine, measuring 2 cm or greater, performed through a colonoscope. If laser debulking is also performed, it should be claimed separately using the add-on code E687.
When to Use
- Use Z765 for the endoscopic removal of a confirmed obstructive colorectal tumour or stricture that measures 2 cm or greater in diameter.
- Use this code when the primary clinical objective is the mechanical excision of the obstruction, rather than a standard diagnostic biopsy or routine polypectomy (Z764).
Common Pitfalls
- Claiming Z765 for lesions smaller than 2 cm, which should be billed under Z764; audit risk arises if the operative report does not explicitly state the size of the lesion.
- Failing to document the 'obstructive' nature of the lesion, which is a mandatory clinical requirement for Z765 eligibility.
- Attempting to bill a separate consultation or assessment on the same day as the procedure, which is disallowed by the payment adjustment rules for 'Z' codes.
Billing Tips
- Ensure the operative report clearly specifies the lesion size as 2 cm or greater to justify the higher fee compared to Z764.
- If laser debulking is performed to clear the obstruction, append E687 to Z765 to capture the additional procedural work.
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