S451 – Ureterovesical anastomosis or re-implantation unilateral
OHIP Urology Code — UROGENITAL AND URINARY SURGICAL PROCEDURES · Schedule of Benefits
S451 is a surgical procedure for the excision of a bone lesion from the femur, which includes the application of a bone graft. The specific details for this code are typically found in the Musculoskeletal System section of the Schedule. General rules for surgical procedures, including the calculation of fees for assistants and anaesthetists, after-hours premiums, and special visit premiums, apply as outlined in the General Preamble (-).
When to Use
- Use S451 for the unilateral surgical re-implantation of a ureter into the bladder, specifically when correcting vesicoureteral reflux or managing a distal ureteral stricture.
- Select S451 when performing a primary ureteroneocystostomy procedure that does not involve the more complex reconstruction associated with S482.
Common Pitfalls
- Billing S451 on the same day as S482 will result in an automatic rejection, as these procedures are mutually exclusive for the same anatomical site.
- Failing to append the E792 add-on code when the procedure is performed laparoscopically results in a 25% underpayment of the surgical fee.
- Attempting to bill for a second surgical assistant without prior written authorization from a medical consultant will lead to the denial of the assistant's claim.
Billing Tips
- Always append the correct suffix (A for surgeon, B for assistant, C for anaesthetist) to ensure the claim is processed against the correct provider role.
- If performing the procedure laparoscopically, ensure E792 is included on the claim to trigger the 25% fee increase automatically.
Effective: April 1, 2026
T. Urogenital and Urinary Surgical Procedures
UROGENITAL AND URINARY SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
The medical record must establish that an insured service was provided, the service claimed is the service that was rendered, and the service was medically necessary ().
When claiming for surgical procedures, the appropriate suffix must be used: Suffix A for the surgeon, Suffix B for the assistant, and Suffix C for the anaesthetist.
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