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Billing code

G529A — Impedance audiometry – professional component

Tympanometry interpretation

Bill G529 for personally interpreting impedance audiometry (tympanometry); the technical part is G442.

Watch for: Pays nil unless interpreted by an otolaryngologist or physician with equivalent training, with written records kept.

Code

G529A

Description

Impedance audiometry – professional component

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

Professional (interpretation) component of impedance audiometry; may include stapedial reflex and compliance testing.

What it covers

G529 is the professional component of impedance audiometry by manual or automated methods, an advanced diagnostic hearing test (J99).

It may include stapedial reflex and/or compliance testing (J99). The technical component is G442.

Billing rules

• Advanced hearing tests pay nil unless the professional component is done personally by an otolaryngologist (or a non-certified physician with equivalent training) (J98).
• The physician claiming the professional component must interpret the test personally (J98).
• Keep written records of your qualifications and those of staff you delegate to; without them the test pays nil (J98).
• Fixed-level screening audiometry, and tests requested or arranged by third parties (school boards, employers, WSIB), are not insured (J98).

Often billed with

• G442 technical component (J99).

Related codes: G442, G526, G525, G530

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Otolaryngology, page J99; diagnostic hearing test rules J98.

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