Billing code
Z907A — Ear debridement under microscopy – unilateral
Microscopic ear debridement
Bill for debridement under the microscope of a mastoid cavity or an ear with significant external or middle ear pathology, one side.
Watch for: Not for wax removal, or debridement with loupes or headlight; G420 isn't payable with it.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $27.40 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- Z907A
- Description
- Ear debridement under microscopy – 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
Debridement under the microscope of a mastoid cavity or an ear with significant external or middle ear pathology, one side.
What it covers
Z907 is debridement under microscopy of mastoid cavities and/or ears with significant external or middle ear pathology, but not for removal of cerumen (Y16).
Debridement with loupes or a magnifying headlight, without significant pathology, or for wax removal is not Z907 (Y16).
Billing rules
- Must be under microscopy, for significant external or middle ear pathology; not for cerumen (Y16).
- Debridement under microscopy done only for access during another procedure is not claimed (Y14).
- The other ear is paid at 85% of the listed fee (Y16).
- 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).
Often billed with
- A244 partial assessment, within the IOP rules (SP4).
Related codes: Z908, G420, Z913, A244
Source: Schedule of Benefits (July 1, 2026), Aural Surgical Procedures, Middle Ear, page Y16.
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