What ICD-10 codes are used for PFO?
The lone PFO ICD-10 code is Q21.12: Patent Foramen Ovale. The code can be found under the following chapter/code range:
- Q21.1: Atrial septal defect
- Q21: Congenital malformations of cardiac septa
- Q00-Q99: Congenital malformations, deformations, and chromosomal abnormalities
The code, which is applicable to persistent foramen ovale, helps accurately document and classify cases involving PFO for medical and billing purposes.
Do note that codes under Q21 excludes acquired cardiac septal defect.
