A patient arrives for a redo PVI due to evidence of continuing atrial fibrillation. The EP study performed demonstrates continued PVI block. 3D mapping and programmed stimulation with Isuprel elucidate that the patient is having episodes of mitral annulus atrial flutter that is ablated. How should this situation be coded?
Report CPT® code 93653 for ablation of mitral annulus atrial flutter along with CPT codes 93623 and 93613 for the isuprel study and 3d mapping, respectively. Although the intended procedure plan was to perform a redo pulmonary vein isolation, electrophysiology study identified that the patient had complete PVI entry and exit block so no treatment of atrial fibrillation via pulmonary vein isolation was rendered in this situation.