Q24.3 Pulmonary infundibular stenosis
The ICD-10-CM code for Pulmonary infundibular stenosis is Q24.3 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- Q20-Q28: Congenital malformations of the circulatory system (Q20-Q28)
- Category Q24
- 10 codes (9 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to Q24.3:
- Stenosis, stenotic (cicatricial) › infundibulum cardia
- Separation › infundibulum cardiac from right ventricle by a partition
- Stricture › pulmonary, pulmonic › infundibulum (congenital)
- Stenosis, stenotic (cicatricial) › pulmonary (artery) (congenital) › infundibular
- Stenosis, stenotic (cicatricial) › pulmonic (congenital) › infundibular
- Stenosis, stenotic (cicatricial) › pulmonary (artery) (congenital) › subvalvular
- Stenosis, stenotic (cicatricial) › pulmonic (congenital) › subvalvular
- Anomaly, anomalous (congenital) (unspecified type) › pulmonary › valve › stenosis › infundibular
Inclusion Terms
- Subvalvular pulmonic stenosis
U.S. Hospital Utilization
- An estimated 750 U.S. inpatient stays in 2023 included Q24.3 among the documented diagnoses.
- 70 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
POA indicator for congenital conditions/anomalies and Q00-Q99 exceptionCongenital conditions and anomalies Assign “Y” for congenital conditions and anomalies except for categories Q00- Q99, Congenital anomalies, which are on the exempt list. Congenital conditions are always considered present on admission.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026