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, (called Coca-Cola light in some countries), is a sugar-free soft drink produced and distributed by The Coca-Cola Company. Unveiled on July 8, 1982 and introduced in the United States on August 9, it is the first new brand since 1886 to use the Coca-Cola trademark.