G498 – Intravenous glucose tolerance test
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
An intravenous glucose tolerance test. As per the Endocrinology and Metabolism section commentary from , the following general rules apply: - The clinical decision(s) formulated by the physician or substitute physician may be communicated to the patient, patient's relative, patient's representative or other caregiver by a staff member other than the physician. - Month refers to a calendar month. - If G514 and G520 are claimed in the same month by the same physician for the same patient, the total fee eligible for payment will be adjusted to the value of G520.
When to Use
- Use G498 when performing a formal intravenous glucose tolerance test to evaluate insulin sensitivity or suspected endocrine disorders.
- Select G498 over G499 when the procedure specifically involves the intravenous administration of glucose rather than an oral glucose tolerance test.
Common Pitfalls
- Claiming G498 alongside other diagnostic endocrine procedures without ensuring the clinical documentation supports the necessity of the intravenous route.
- Failing to recognize that G498 is a low-value diagnostic code that does not include the professional fee for an associated consultation or assessment.
Billing Tips
- Ensure the procedure is clearly distinguished from G490 or G513 in your records to avoid audit triggers regarding the specific diagnostic protocol utilized.
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