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Billing code

Z528A — Gastroscopy - Subsequent (within Three Months Following Previous Gastroscopy)

Repeat gastroscopy

Bill for a gastroscopy done within three months after a previous gastroscopy.

Watch for: Use Z527 when there was no gastroscopy in the past three months.

Code

Z528A

Description

Gastroscopy - Subsequent (within Three Months Following Previous Gastroscopy)

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

Repeat gastroscopy within three months of a previous gastroscopy.

What it covers

Z528 is a subsequent gastroscopy, done within three months after a previous gastroscopy (S11).

The first gastroscopy is Z527 (may include biopsies, photography and removal of polyps 1 cm or less); gastroscopy with foreign body removal is Z547 (S11).

Billing rules

• Use when the previous gastroscopy was within the past three months (S11).
• E674 and E675 snare polypectomy (polyps over 1 cm) are payable with Z528 (S11).
• Anaesthesia is 4 basic units (S11).
• Laryngoscopy Z292 at the same time is not payable unless done for suspected laryngeal disease; those claims go to manual review with a written explanation (S8, S11).
• Patients under 16 get an age premium of 10% to 30% (GP64).
• It is a Z-code (IOP): if you made the decision to scope at a visit in the past 12 months, only a partial assessment (specialist) or minor assessment (family physician) is payable that day before it (SP4 §13).

Often billed with

• E674 first polyp over 1 cm by snare (maximum 1) and E675 each additional (maximum 2) (S11).

Related codes: Z527, Z547, E674, E675, Z399

Source: Schedule of Benefits (July 1, 2026), Digestive System Surgical Procedures, Stomach, page S11.

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