Saline Infusion Test

Hi, I have a question regarding the coding for a saline infusion test. I know that the lab CPT is 80408 (aldosterone suppression evaluation panel that includes aldosterone (82088 X 2) and renin (84244 X 2)). My question is if you can code for the infusion of the saline as it would be for diagnostic purposes. If a saline infusion was done for 4 hours, could I code 96365 and 96366 X 3?

Or is the saline infusion included in the 80408?

Thanks!!

Saline Infusion Test