Patent foramen ovale. Persistent foramen ovale.Q21.12 Patent foramen ovale - ICD-10-CM Diagnosis Codes. Q2113, CC, 54 codes, Coronary sinus atrial septal defect. A condition in which the foramen ovale in the atrial septum fails to close shortly after birth. Applicable ICD10CM diagnosis code. 3. Administration code. 00032 - Transcatheter Closure of Patent Foramen Ovale and Left Atrial. PH was the primary outcome and was identified via diagnostic ICD10 codes recorded in the KID. 1.63 (BMAC) vs 4.00 (No BMAC) (p-value = .010).