What is OHIP billing code E934?

E934 is "Orbit - open reduction rim/wall fracture - Zygomatic fracture dislocation - with primary bone graft (separate site)", an OHIP Surgical Assists code from the Ontario Schedule of Benefits (Physician Services).

How much does E934 pay?

The current OHIP fee for E934 is $204.80, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill E934 to OHIP?

E934 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates E934 claims against the Schedule of Benefits rules before submission.

What codes are related to E934?

Codes related to E934 in the Schedule of Benefits include E173, E174, E932, E935, Z263, Z264, Z265, Z266.

All codes

E934

E934 – Orbit - open reduction rim/wall fracture - Zygomatic fracture dislocation - with primary bone graft (separate site)

OHIP Surgical Assists Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits

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This is an add-on code used in conjunction with open reduction of an orbit rim/wall fracture (E173) or a blowout fracture of the orbital floor (E174). It is claimed when a primary bone graft is harvested from a separate anatomical site and used in the orbital reconstruction. This service is an addition to the main procedure.

When to Use

Use E934 when performing an open reduction of a zygomatic fracture (E173) that requires a primary bone graft harvested from a separate anatomical site, such as the calvarium or iliac crest.
Use E934 when reconstructing an orbital floor blowout fracture (E174) where the defect size necessitates a primary bone graft harvested from a distinct donor site to ensure structural stability.

Common Pitfalls

Billing E934 concurrently with Z263, Z264, Z265, Z266, E975, or E976 will result in automatic rejection due to explicit billing restrictions.
Claiming E934 for the use of synthetic or alloplastic implants is incorrect; this code is strictly for primary bone grafts harvested from a separate anatomical site.
Failing to link E934 to the primary procedure (E173 or E174) on the same claim will lead to payment errors, as E934 is an add-on code.

Billing Tips

Ensure the operative report clearly documents the harvesting site of the bone graft to justify the use of E934 over non-grafting procedures.
Apply relevant age premiums (e.g., for patients under 16) or after-hours premiums (E409/E410) to the total procedural fee, as E934 is considered part of the surgical procedure package.

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Provider Fee$204.80

Effective: April 1, 2025

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