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Glucose Tolerance

Jared Posted Thu 05th of April, 2012 17:21:33 PM

When billing for a 3 hour glucose tolerance, is it appropriate to bill for 3 veniunctures if it is actually done 3 times, and not a catheter left in place?

SuperCoder Answered Thu 05th of April, 2012 21:07:10 PM

The rarely used intravenous glucose tolerance test (IGTT) involves glucose being injected into the patient's vein for 3 minutes. The lab personnel measures blood insulin levels before the injection, and at 1 and 3 minutes thereafter.

Providers should report only one venipuncture procedure for glucose tolerance tests even though multiple blood draws are performed.

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