Q24.3 – Pulmonary infundibular stenosis
ICD-10-CM 2027 diagnosis code · Congenital malformations of the circulatory system
ICD-10-CM code
Q24.3
- Code
Q24.3(claims format:Q243)- Description
- Pulmonary infundibular stenosis
- Billable
- Yes – valid for HIPAA-covered transactions
- 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
- Parent codes
- Q24
Notes for Q24.3
Applicable to:
- Subvalvular pulmonic stenosis
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Q24 – Other congenital malformations of heart
Excludes1 (not coded here):
- endocardial fibroelastosis (I42.4)
Index terms for Q24.3
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Stenosis, stenotic, infundibulum cardia
- Stenosis, stenotic, pulmonic, subvalvular
- Stenosis, stenotic, pulmonary, subvalvular
- Stenosis, stenotic, pulmonic, infundibular
- Stenosis, stenotic, pulmonary, infundibular
- Stricture, pulmonary, pulmonic, infundibulum
- Anomaly, anomalous, pulmonary, valve, stenosis, subvalvular
- Anomaly, anomalous, pulmonary, valve, stenosis, infundibular
- Separation, infundibulum cardiac from right ventricle by a partition
- Anomaly, anomalous, heart, valve NEC, pulmonary, stenosis, subvalvular
- Anomaly, anomalous, heart, valve NEC, pulmonary, stenosis, infundibular
Related codes in Q24
- Q24.0 – DextrocardiaBillable
- Q24.1 – LevocardiaBillable
- Q24.2 – Cor triatriatumBillable
- 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
Frequently asked questions
What is ICD-10 code Q24.3?
Q24.3 is the ICD-10-CM code for pulmonary infundibular stenosis, in the block Q20-Q28 (Congenital malformations of the circulatory system).
Is Q24.3 a billable code?
Yes. Q24.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q24.3 belong to?
It belongs to category Q24 – Other congenital malformations of heart.
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.