< Billing codes

Billing code

E115A

Minimally invasive glaucoma surgery

Bill for minimally invasive glaucoma or bleb surgery, ab interno or ab externo, such as iStent, Hydrus or XEN Gel Stent.

Watch for: Not payable with E123 (division of iris to cornea or angle); add E110 when done with cataract extraction in the same eye.

Code

E115A

FHO+ basket

Not in the FHO+ base rate basket (Schedule 2 or 2B).

Effective date

Apr 1, 2026

Termination date

No end date

Explanation

Updated October 26, 2026

Minimally invasive glaucoma surgery (MIGS) or minimally invasive bleb surgery, done ab interno or ab externo, such as iStent, Hydrus or XEN.

What it covers

E115 covers minimally invasive glaucoma surgery or minimally invasive bleb surgery, ab interno or ab externo. The Schedule's examples are the Hydrus stent, iStent, Trabectome, Kahook dual blade, canaloplasty, XEN Gel Stent and PreserFlo MicroShunt (Y4).

It sits with the glaucoma filtering procedures: E132 for ab externo filtering surgery such as trabeculectomy, and E114 for a plate and tube drainage device (Y4).

Billing rules

• When done with cataract extraction in the same eye, add E110. E110 already includes removing the native lens and inserting the intraocular lens (Y4).
• When done after a previous glaucoma filtering procedure, add E984 (Y4).
• E123 (division of iris to cornea and/or angle) is not payable with E115 (Y3).
• More than one procedure under the same anaesthetic: the major procedure is paid in full and the others at 85% (SP2).
• Age premiums of 10% to 30% apply for patients under 16 (GP64).
• Marked #: the fee does not include the premises, equipment, supplies or staff for the procedure itself, which the hospital or ICHSC funds (SP1).

Often billed with

• E110 with cataract extraction, same eye (Y4).
• E984 after a previous glaucoma filtering procedure (Y4).

Common rejections

• ADH: OHIP describes this as 'Cannot be billed together': E123 is not payable with E115 (Y3).

Related codes: E132, E114, E110, E984, E134, E131, E212, E123

Source: Schedule of Benefits (July 1, 2026), Ocular Surgical Procedures, Sclera, Iris and Ciliary Body, page Y4.

APEX checks every paid claim against the Schedule of Benefits and flags codes billed below what the visit qualified for. See how APEX works · Pricing