Q24 – Other congenital malformations of heart
ICD-10-CM 2027 diagnosis code · Congenital malformations of the circulatory system
ICD-10-CM code
Q24
- Code
Q24(claims format:Q24)- Description
- Other congenital malformations of heart
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q20-Q28 Congenital malformations of the circulatory system
Billable codes under Q24
Q24 is a header code and cannot be used on claims. Choose the most specific code:
- Q24.0 – DextrocardiaBillable
- Q24.1 – LevocardiaBillable
- Q24.2 – Cor triatriatumBillable
- Q24.3 – Pulmonary infundibular stenosisBillable
- Q24.4 – Congenital subaortic stenosisBillable
- Q24.5 – Malformation of coronary vesselsBillable
- Q24.6 – Congenital heart blockBillable
- Q24.8 – Other specified congenital malformations of heartBillable
- Q24.9 – Congenital malformation of heart, unspecifiedBillable
Notes for Q24
Excludes1 (not coded here):
- endocardial fibroelastosis (I42.4)
Frequently asked questions
What is ICD-10 code Q24?
Q24 is the ICD-10-CM code for other congenital malformations of heart, in the block Q20-Q28 (Congenital malformations of the circulatory system).
Is Q24 a billable code?
No. Q24 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.