Bronchoscopy

I WANT TO KNOW ABOUT THE CPT® CODE 31623 , I CLAIMED FOR 31629 WITH 31623 AND 31624 WITH 51 MODIFIER, BUT WE DENIAL FOR THE CPT® CODE 31623 , SHOWING THE REASON,

"Separately billed services/tests have been bundled as they are considered components of the same procedure. Separate payment is not allowed." PL REPLY,THX