what is occult paroxysmal atrial fibrillation
Paroxysmal atrial fibrillation. 1  I48.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after Oct 1, 2015 require the use of ICD-10-CM codes.  This is the American ICD-10-CM version of I48.0.