sign, symptom, or diagnosis, it is appropriate to assign both the V code and the code describing the reason for the non-routine test. 18
The difference is in the types of non -nutritive sweeteners used. Diet Coke has aspartame while Coke Zero has a mix of aspartame and acesulfame potassium. The beverages have different levels of sweetness and off tastes (I.e. high levels of aspartame have a metallic taste) as a result.
If there is the tiniest bit of truth to this rumor, it's that even though sodas such as Diet Coke and Diet Pepsi are advertised as having zero calories, they do have. caloric content from ingredients such as artificial sweeteners, citric acid, and caramel coloring.