G341 – Hypertonic saline infusion test
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
A diagnostic procedure listed under the Endocrinology and Metabolism section of the Schedule of Benefits. As per and , this service includes all applicable common elements which include but are not limited to: - Obtaining and reviewing patient information. - Obtaining consent. - Maintaining appropriate medical records. - Providing medical prescriptions if necessary. - Conferring with other health professionals. - Providing the necessary premises, equipment, supplies, and personnel.
When to Use
- Use G341 when performing a hypertonic saline infusion test to evaluate suspected diabetes insipidus or to differentiate between polydipsia types.
- Bill G341 when the procedure is conducted in a clinical setting to assess osmoreceptor sensitivity in patients with unexplained polyuria.
Common Pitfalls
- Attempting to bill G341 with a Special Visit Premium; premiums must be attached to the accompanying assessment code, not the procedure code itself.
- Failing to bill an accompanying assessment code (e.g., A007) during the same encounter, as G341 is a procedure-only code and does not include the physician's cognitive assessment.
Billing Tips
- Always pair G341 with an appropriate assessment code to ensure you are compensated for the time spent monitoring the patient during the infusion process.
Effective: April 1, 2025
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Procedure
Diagnostic and Therapeutic Procedures
All insured services must be documented in appropriate records. The Act requires that the record establish that: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
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