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E118
E118 – Excision of dermoid - with partial keratectomy
OHIP Surgical Assists Code — OCULAR SURGICAL PROCEDURES · Schedule of Benefits
Excision of a dermoid cyst from the eye, which includes a partial keratectomy. As a surgical procedure, this service includes all related pre-operative and post-operative care, as well as the common and specific elements of insured services as defined in the Schedule of Benefits.
When to Use
- Use E118 specifically for the surgical excision of an ocular dermoid that necessitates a partial keratectomy to clear the corneal surface.
- Choose E118 over simple excision codes like E117 when the pathology involves the corneal stroma, requiring a formal keratectomy component to ensure complete removal.
Common Pitfalls
- Billing E118 alongside other corneal procedures (e.g., E205 or E206) without clear documentation of distinct anatomical sites, which may trigger a rejection for unbundling.
- Attempting to bill an assistant fee (M400B) without prior authorization, as E118 does not have a pre-approved assistant unit value in the Schedule of Benefits.
Billing Tips
- Ensure the operative report explicitly details the keratectomy portion of the procedure to justify the use of E118 over less intensive excision codes.
- If the procedure is performed on a pediatric patient, remember to apply the appropriate age-based surgical premium percentage to the base fee of $308.30.
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