What is OHIP billing code G870?

G870 is "Botulinum toxin injection(s) of extraocular muscle(s), (unilateral)", an OHIP Diagnostic & Therapeutic Procedures code from the Ontario Schedule of Benefits (Physician Services).

How much does G870 pay?

The current OHIP fee for G870 is $120.00, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill G870 to OHIP?

G870 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates G870 claims against the Schedule of Benefits rules before submission.

What codes are related to G870?

Codes related to G870 in the Schedule of Benefits include G869, G871, G872, G873, G874, G875, G876, G877.

All codes

G870

G870 – Botulinum toxin injection(s) of extraocular muscle(s), (unilateral)

OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits

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A unilateral procedure for the injection of botulinum toxin into one or more extraocular muscles. This service is eligible for add-on payments for EMG guidance (see G877, G878) and for the use of a disposable EMG electrode outside of a hospital setting (E543).

When to Use

Use G870 for the unilateral injection of botulinum toxin into an extraocular muscle to treat conditions like strabismus or blepharospasm.
Select G870 when performing a single-side procedure, as opposed to G871 which covers bilateral extraocular muscle injections.

Common Pitfalls

Billing G877 or G878 alongside G870 without documenting the medical necessity for EMG guidance to determine the injection site will result in a rejection.
Attempting to claim E543 for disposable electrodes when the procedure is performed within a hospital setting is a common billing error that leads to automatic claim denial.
Billing G870 in combination with other diagnostic EMG or ultrasound services for site determination is prohibited; only G877 or G878 are eligible for payment.

Billing Tips

Always ensure the number of injections matches the chosen add-on: use G877 for a single injection and G878 for two or more injections to avoid audit flags.
If the patient requires treatment more frequently than standard intervals, submit the claim for manual review with detailed clinical justification to prevent automatic rejection.

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Provider Fee$120.00

Effective: April 1, 2025

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