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.
While hardly an ideal beverage, Diet Coke may seem like a better choice than classic Coca-Cola. Diet Coke has no calories, sugar or carbohydrates, while a 12-ounce can of regular Coke has 140 calories and 39 grams of sugar. But Diet Coke contains ingredients that can cause undesirable side effects, especially when consumed in large quantities.