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Billing code

Z323A — Direct laryngoscopy – removal of lesion(s)

Laryngoscopy, lesion removal

Bill for direct laryngoscopy with removal of one or more lesions.

Watch for: Add E643 for laser microlaryngoscopy of benign disease, but E600 for the microscope isn't payable with E643.

Code

Z323A

Description

Direct laryngoscopy – removal of lesion(s)

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

Direct laryngoscopy with removal of one or more lesions.

What it covers

Z323 is direct laryngoscopy with removal of lesion(s) (P7).

Billing rules

• Add E643 when a laser is used with microlaryngoscopy for benign disease (P7).
• Add E600 for the operating microscope, but not when E643 is billed (P7).
• No manual review is needed when Z323 is done with gastroscopy or other upper endoscopy (P7).
• 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

• E643 laser microlaryngoscopy for benign disease (P7).
• E600 operating microscope, when E643 isn't billed (P7).

Related codes: E643, E600, Z292, Z293, Z322

Source: Schedule of Benefits (July 1, 2026), Respiratory Surgical Procedures, Larynx, page P7.

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