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R318
R318 – Excision exostosis/cyst patella
OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This surgical procedure involves the removal of a bony growth (exostosis) or a fluid-filled sac (cyst) from the patella. This service can be claimed by the surgeon (suffix A), assistant (suffix B), and anaesthetist (suffix C). The assistant and anaesthetist fees are calculated based on 6 basic units each, plus time units as defined in the Schedule of Benefits on pages and .
When to Use
- Use R318 for the surgical excision of a symptomatic patellar exostosis that causes mechanical impingement or pain.
- Use R318 for the surgical removal of a benign patellar cyst, such as a subchondral bone cyst, when confirmed by imaging.
Common Pitfalls
- Do not bill R318 in conjunction with a general hospital admission assessment, as this is considered part of the surgical package unless it qualifies as the major pre-operative visit.
- Avoid billing R318 for simple aspiration of a cyst; this code is specifically for the surgical excision of the lesion.
Billing Tips
- Ensure the operative report clearly describes the excision of the bony or cystic lesion to justify the R318 fee over a minor procedure code.
- If an assistant or anaesthetist is required, ensure their claims include the appropriate time units in addition to the 6 basic units to avoid underpayment.
Provider Fee$126.25
Surgical Assistant Fee$75.06
Anaesthetist Fee$92.94
Non-Anaesthetist Fee$92.94
Effective: April 1, 2025
Category
N. Musculoskeletal System Surgical Procedures
Subcategory
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Service Type
Surgical
Code Classes
Musculoskeletal System Surgical Procedures
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