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E121
E121 – Corneal transplant - penetrating
OHIP Surgical Assists Code — OCULAR SURGICAL PROCEDURES · Schedule of Benefits
Performance of a penetrating corneal transplant. This is a surgical procedure for corneal replacement, listed under Ocular and Aural Surgical Procedures.
When to Use
- Use E121 for full-thickness penetrating keratoplasty where all layers of the cornea are replaced.
- Select E121 when performing a primary graft for conditions like keratoconus or corneal scarring, provided it is not a lamellar procedure.
Common Pitfalls
- Billing E121 in conjunction with E117 will trigger an automatic rejection as they are mutually exclusive procedures.
- Failing to document the specific clinical indications required for E123 will result in the denial of the add-on code when billed with E121.
Billing Tips
- Always bill E123 as an add-on to E121 if the operative report explicitly details iris-corneal adhesions or the specific high-risk conditions listed in the Schedule of Benefits.
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