G340Histamine test to include a control cold pressor test
DIAGNOSTIC AND THERAPEUTIC PROCEDURES · ENDOCRINOLOGY AND METABOLISM
$45.45What this reference tells you
G340 identifies the Ontario insured service described as “Histamine test to include a control cold pressor test.” 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.