Ob-Gyn Coding Alert
Sort Through These 2-Hour, 3-Hour Glucose Test Codes
Question: I’m trying to figure out how to bill for this glucose two hour test. I have been finding conflicting answers. Patient had a fasting glucose done first and then a post-glucose done at two hours. Would there be two lab codes for the fasting and post-, or is there one that would cover them both? Does it make a difference that the test ordered as a GTT Post Prandial Blood Sugar did not include three specimens? Vermont Subscriber Answer: CPT® code 82950 (Glucose; post glucose dose [includes glucose]) represents a one-specimen glucose tolerance test (whether done at one hour or two hours after ingesting the glucose). This does not include the fasting glucose that is done first as represented by 82947 (Glucose; quantitative, blood [except reagent strip]). But all labs now do a fasting, followed by glucose, and then testing when a one-hour or two-hour GTT is ordered. The three-hour GTT (82951, Glucose; tolerance test (GTT), 3 specimens (includes glucose)), however, does include a fasting glucose followed by two more blood samplings to test the glucose levels after giving the glucose to drink. Bottom line: Your provider must order the test they want. If they did not order a fasting glucose (82947) then you would only order the 82950 for the one- or two-hour GTT. You need to discuss this with your providers.
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