ICD-10-CM › Q00-QA1 › Q20-Q28 › Q23.8 Other congenital malformations of... › Q23.81
Q23.81
Bicuspid aortic valve
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 2025 to now.
- FY2025 Added to the code set Bicuspid aortic valve
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
- Aberrant
- Patulous
- Abnormity
- Asymmetry
- Dysplasia
- Additional
- 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
- Pervious, congenital
- Elongated, elongation
- Open, opening > false
- Termination > anomalous
- Heterotopia, heterotopic
- Implantation > anomalous
- Segmentation, incomplete
- Subluxation > congenital
- Congenital > malformation
Showing 40 of 99 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q23.82 | Congenital mitral valve cleft leaflet | Valid |
| Q23.88 | Other congenital malformations of aortic and mitral valves | Valid |