Everything I have read this year regarding the new moderate sedation codes are that for the initial 15 mins 99152 is to be coded and for every additional 15 mins bill 99153. I have received countless denials for 99152 but they are paying 99153. I called the insurance company and they are saying that 99152 is no longer valid code per CPT/HCPCS manual. Is anyone else running into this issue? We are a vascular practice so you can imagine with all the percutaneous procedures that are done and each time moderate sedation is used and billed are now being denied. Thanks you in advance!