G338Clonidine suppression test (for the investigation of pheochromocytoma) - with physician present - includes venipunctures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES · ENDOCRINOLOGY AND METABOLISM
$24.90What this reference tells you
G338 identifies the Ontario insured service described as “Clonidine suppression test (for the investigation of pheochromocytoma) - with physician present - includes venipunctures.” The listed fee and rules are reference data; the clinical record must support the service actually performed.
Before using this code
Confirm the current Ministry publication, the patient and provider context, the date of service, and documentation supporting the claim. A searchable reference does not establish eligibility or guarantee payment.