Q21.12
Billable codePatent foramen ovale
The ICD-10 code for patent foramen ovale is Q21.12.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Persistent foramen ovale
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Q21.10Atrial septal defect, unspecified
- Q21.11Secundum atrial septal defect
- Q21.13Coronary sinus atrial septal defect
- Q21.14Superior sinus venosus atrial septal defect
- Q21.15Inferior sinus venosus atrial septal defect
- Q21.16Sinus venosus atrial septal defect, unspecified
- Q21.19Other specified atrial septal defect
- Q21.12Patent foramen ovale
Associated MS-DRGs
Q21.12 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.