< Billing codes

Billing code

G341A — Glucagon Test - Hypertonic Saline Infusion Test

Hypertonic saline infusion test

Bill G341 for a hypertonic saline infusion test; it is payable in addition to a consultation or assessment.

Watch for: G700 applies only when the test is the sole reason for the visit, and not in hospital.

ProviderSpecialistAssistantAnaesthetistNon-anaesthetist
$16.95$0.00$0.00$0.00$0.00
Code
G341A
Description
Glucagon Test - Hypertonic Saline Infusion Test
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

Hypertonic saline infusion test.

What it covers

G341 is a hypertonic saline infusion test (J41).

The antidiuretic hormone response test with 8-hour water deprivation is listed separately as G337 (J41).

Billing rules

  • Payable in addition to a consultation or assessment unless listed as included (J3).
  • Includes preparing the patient, doing the test with monitoring afterwards, interpreting results with a written report to the referring provider where appropriate, and follow-up arrangements (J3).
  • Marked (+): when the test is the sole reason for the visit, add G700 once per visit. G700 is not payable in hospital, and not when you are also paid a consultation or assessment that day and have a financial interest in the facility (J3).
  • For a patient enrolled with a capitation-based group, G700 pays 15% of its fee (J3).

Often billed with

  • G700 basic fee-per-visit premium when the test is the only reason for the visit, outside hospital (J3).

Related codes: G337, G493, G700

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Endocrinology and Metabolism, page J41; preamble J3.

APEX checks every paid claim against the Schedule of Benefits and flags codes billed below what the visit qualified for. See how APEX works · Pricing