Available for iPhone, iPad, Android, and Web. -Most items in the Congenital Anomalies section of the ICD-10-CM are reportable to the Georgia Birth Defects. Registry.Patent foramen ovale. Persistent foramen ovale. Q21.13, Coronary sinus atrial septal defect. Evidence that patent foramen ovale is not a risk factor for cerebral ischemia in the elderly. Q21.12 Patent foramen ovale - ICD-10-CM Diagnosis Codes. Used for patent foramen ovale (PFO) which is a normal variant and for "ruleout" congenital heart disease (CHD). Not CHD was defined in the medical record documentation as the absence of heart defects recorded in imaging or provider notes. An atrial septal defect repair or closure device or a patent foramen ovale repair or closure device is present.