NCCI bundles 52281 into most if not all other transuretheral procedures, with no modifier allowed to bypass the edit.
If your doctor does dilation and cystoscopy during the same session, then code 52281. This is true even if the dilation was not done through the scope.
CPT 53600 is only reported in those cases where the doctor does a dilation, but does not do cystoscopy during the same session.
Sincerely,
Drew Vinson
CPC
NW Urology