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Z749
Z749 – Subsequent procedure (within three months following previous endoscopic procedure)
OHIP Psychiatric Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This service is a subsequent endoscopic procedure on the intestines (excluding the rectum) performed within three months of a preceding endoscopic procedure. Anaesthesia for this service is valued at 4 basic units as per the Schedule of Benefits. Assistant services are not listed with dedicated basic units but may be claimed on an independent consideration basis per using the anaesthesia base units.
When to Use
- Use Z749 when performing a repeat endoscopic procedure on the small bowel within 90 days of an initial procedure to address incomplete visualization or therapeutic follow-up.
- Use this code for a planned second-look endoscopy on the small intestine when the initial procedure was diagnostic and a subsequent intervention is required within the three-month window.
Common Pitfalls
- Billing Z749 for procedures involving the rectum or colon, as this code is specifically restricted to small bowel/intestinal procedures excluding the rectum.
- Attempting to bill Z749 alongside Z292 without explicit documentation of laryngeal disease, which will trigger an automatic rejection and require manual review.
- Failing to account for the three-month interval, as claims submitted outside this window will be rejected for incorrect code usage.
Billing Tips
- Ensure the primary procedure code is correctly linked to the initial endoscopic event to avoid audit flags regarding the necessity of the subsequent Z749 service.
- When claiming for an assistant, use the anaesthesia base units as the reference point for independent consideration under GP85, as Z749 lacks dedicated assistant units.
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