Q21.14

Superior sinus venosus atrial septal defect

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · Q21.14
Synonyms

Superior vena cava type atrial septal defect

Inherited from Q21.1Atrial septal defect
Excludes 2

ostium primum atrial septal defect (type I) (Q21.20)

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 Q21.14

FY 2026 ›
I.C.17Chapter-specific guidanceChapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-QA1)

Sections that reference Q21.14

Sections whose FY 2026 text names Q21.14, its Q21 category, or a range containing it — the chapter guidance above is the authoritative source.

Find Q21.14 in the alphabetic index

2 index paths lead to this code