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Billing code

G351A — Esophageal reflux monitoring study (24 hours or longer)

24-hour reflux monitoring

Bill G351 for an oesophageal reflux monitoring study lasting 24 hours or longer, as the professional component.

Watch for: The study must run at least 24 hours, and you must personally interpret it.

Code

G351A

Description

Esophageal reflux monitoring study (24 hours or longer)

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

Esophageal reflux monitoring for 24 hours or longer, billed as the professional component.

What it covers

G351 is an esophageal reflux monitoring study lasting 24 hours or longer, under oesophageal studies (J44). The fee is in the professional (P) column (J44).

Billing rules

• The study must run 24 hours or longer (J44).
• Professional component: supervision, any associated clinical procedure, monitoring and interpretation; interpretation must be done personally by the billing physician (J1).
• If you can't personally do the supervision, associated clinical procedure and monitoring, another physician may do them; the interpretation can't be delegated (J1).

Related codes: G350, G353, G354

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Gastroenterology, page J44.

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