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E305
E305 – Limited incision for perichondritis, removal of cartilage and drainage
OHIP Surgical Assists Code — Y. Ocular and Aural Surgical Procedures · Schedule of Benefits
Limited incision for perichondritis, removal of cartilage and drainage. The '#' prefix indicates this service is typically performed in a hospital or an Integrated Community Health Services Centre (ICHSC). For services performed in these settings, the facility costs (premises, equipment, supplies, personnel) are funded by the institution's budget as per .
When to Use
- Use E305 for the surgical management of auricular perichondritis requiring a formal incision, debridement of necrotic cartilage, and drainage.
- Use this code when the procedure is performed in a hospital or ICHSC setting, as indicated by the '#' prefix, distinguishing it from office-based minor procedures.
Common Pitfalls
- Do not bill E305 for simple needle aspiration of an auricular hematoma, which is more appropriately captured under other minor procedural codes.
- Avoid billing for ear debridement under microscopy if it was performed solely to gain access for the E305 procedure, as this is considered inclusive per the preamble.
- Failure to provide a supporting letter for an assistant's services will result in the rejection of M400B claims associated with this procedure.
Billing Tips
- Ensure the operative report clearly details the removal of cartilage, as the code specifically requires this component beyond simple drainage.
- If performing the procedure after hours, apply the appropriate premium (E409 or E410) to the procedural fee to maximize reimbursement for non-elective cases.
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