Q21.0
Ventricular septal defect
Risk-adjusting (HCC)Billable code
HCC risk adjustment mapping
RxHCC V08
RXHCC191
Ventricular Septal Defect and Major Congenital Heart Disorders
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
This code · Q21.0
Synonyms
Roger's disease
Inherited from Q21Congenital malformations of cardiac septa
Excludes 1
acquired cardiac septal defect (I51.0)
Inherited from chapter 17Congenital malformations, deformations and chromosomal abnormalities
Excludes 2
inborn errors of metabolism (E70-E88)
Note
Codes from this chapter are not for use on maternal records
Official Guidelines for Q21.0
FY 2026 ›Sections that reference Q21.0
Sections whose FY 2026 text names Q21.0, its Q21 category, or a range containing it — the chapter guidance above is the authoritative source.
Find Q21.0 in the alphabetic index
25 index paths lead to this code
- Gerbode defect
- Maladie de Roger
- Roger's disease
- Anomaly, anomalous › Gerbode
- Closure › interventricular septum, defective
- Defect, defective › bulbar septum
- Defect, defective › Gerbode
- Defect, defective › interventricular septal
- Defect, defective › ventricular septal
- Disease, diseased › Roger's
- Displacement, displaced › ventricular septum
- Fusion, fused › ventricles, heart
- Imperfect › septum, ventricular
- Patent › interventricular septum
- Anomaly, anomalous › atrioventricular › septum
- Anomaly, anomalous › communication › left ventricle with right atrium
- Anomaly, anomalous › ventricular › septa
- Defect, defective › septal NOS › ventricular
- Imperfect › closure › interventricular ostium or septum
- Anomaly, anomalous › heart › septum › interventricular
- Anomaly, anomalous › heart › septum › ventricular
- Deformity › heart › septum › ventricular
- Imperfect › closure › ostium › interventricular
- Imperfect › closure › septum › interventricular
- Imperfect › closure › septum › ventricular