ICD-10-CM › Q00-QA1 › Q20-Q28 › Q21.1 Atrial septal defect › Q21.12
Q21.12
Patent foramen ovale
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2023 to now.
- FY2023 Added to the code set Patent foramen ovale
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from Q21 Congenital malformations of cardiac septa
Excludes1 - never coded here
- acquired cardiac septal defect (I51.0)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Cleft
- Extra
- Fused
- Patent
- Trifid
- Triple
- Window
- Aplasia
- Missing
- Aberrant
- Blueness
- Patulous
- Abnormity
- Asymmetry
- Dysplasia
- Additional
- Amputation
- Lobulation
- Nonclosure
- Nondescent
- Fold, folds
- Rudimentary
- Undescended
- Malformation
- Triplication
- Transposition
- Birth > defect
- Maldevelopment
- Septum, septate
- Union, abnormal
- Imperfect > fusion
- Vestige, vestigial
- Duplication, duplex
- Lesion > congenital
- Loss > organ or part
- Pervious, congenital
- Elongated, elongation
- Open, opening > false
- Termination > anomalous
- Heterotopia, heterotopic
Showing 40 of 115 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q21.10 | Atrial septal defect, unspecified | Valid |
| Q21.11 | Secundum atrial septal defect | Valid |
| Q21.13 | Coronary sinus atrial septal defect | Valid |
| Q21.14 | Superior sinus venosus atrial septal defect | Valid |
| Q21.15 | Inferior sinus venosus atrial septal defect | Valid |
| Q21.16 | Sinus venosus atrial septal defect, unspecified | Valid |
| Q21.19 | Other specified atrial septal defect | Valid |