What is OHIP billing code X018?

X018 is "Optic foramina", an OHIP Laboratory code from the Ontario Schedule of Benefits (Physician Services).

How much does X018 pay?

The current OHIP fee for X018 is $0.00, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill X018 to OHIP?

X018 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates X018 claims against the Schedule of Benefits rules before submission.

What codes are related to X018?

Codes related to X018 in the Schedule of Benefits include X001, X009, X003, X016, X017.

All codes

X018

X018 – Optic foramina

OHIP Laboratory Code — DIAGNOSTIC RADIOLOGY · Schedule of Benefits

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Diagnostic radiology of the optic foramina. This service has two components: a Technical Component (H) fee and a Professional Component (P) fee. According to on , the technical component is billed with suffix 'B' (e.g., X018B) and the professional component is billed with suffix 'C' (e.g., X018C).

When to Use

Use X018 for targeted radiographic assessment of the optic canals when evaluating for optic nerve sheath pathology or suspected canalicular involvement in orbital trauma.
Use this code when the clinical suspicion specifically warrants visualization of the optic foramina, distinguishing it from general orbital imaging like X016 or X017.

Common Pitfalls

Billing X018 without the appropriate suffix (B for technical, C for professional) will result in an automatic rejection as the system requires the component designation.
Attempting to bill X018 for dental-related imaging is a common audit trigger, as dental x-rays are explicitly excluded from OHIP coverage.

Billing Tips

Ensure the referring physician's information is accurately captured in your billing software, as a valid referral from a physician, nurse practitioner, or dental/oral surgeon is mandatory for this diagnostic service.

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Provider Fee$0.00

Surgical Assistant Fee$19.20

Non-Anaesthetist Fee$9.05

Effective: April 1, 2025

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