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Billing code

Z913A — Repair of small eardrum perforation under local – unilateral

Small eardrum perforation repair

Bill for repairing a small eardrum perforation under local anaesthesia, with or without debridement, one ear.

Watch for: Not payable with Z908 or myringoplasty E323, and G420 isn't payable with it.

Code

Z913A

Description

Repair of small eardrum perforation under local – unilateral

FHO+ basket

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

Effective date

Apr 1, 2025

Termination date

No end date

Explanation

Updated October 26, 2026

Repair of a small tympanic membrane perforation under local anaesthesia, with or without debridement, one ear.

What it covers

Z913 is repair of a small perforation under local anaesthesia, with or without debridement, unilateral (Y16). Myringoplasty is E323 (Y16).

Billing rules

• Not payable with Z908 or E323 (Y17).
• The other ear is paid at 85% of the listed fee (Y17).
• G420 ear syringing/debridement is not payable with Z906, Z907, Z908 or Z913 (Y16, J97).
• Z codes are independent operative procedures (IOP), payable in addition to an assessment. If you made the decision to operate in the past 12 months, only a partial assessment (specialist) or minor assessment (GP) is payable before the IOP that day; if the decision is the same day, no other assessment before it is paid (GP4, SP4).

Common rejections

• ADH: OHIP describes this as 'Cannot be billed together': Z913 with Z908 or E323 (Y17).

Related codes: E323, Z908, Z907, G420

Source: Schedule of Benefits (July 1, 2026), Aural Surgical Procedures, Middle Ear, page Y16; notes Y17.

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