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.
Diet Coke is produced by the Coca-Cola Company. An 8 oz. serving provides zero calories, according to the company's website. One serving also provides zero grams each of fat, carbohydrates and protein and contains 40mg of sodium.