Q21.1 – Atrial septal defect
Coding Notes
Active
Billable, valid for HIPAA-covered transactions
Applicable To
Coronary sinus defect
Patent or persistent foramen ovale
Patent or persistent ostium secundum defect (type II)
Patent or persistent sinus venosus defect
GEM Conversion to ICD-9 CM
Fs: 00000
–
Ostium secundum type atrial septal defect
MDC / MS-DRG Reference
Back Reference of Diagnostic Codes
Abnormal, abnormality, abnormalities
See also Anomaly
Absence
(of) (organ or part) (complete or partial)
atrial septum
(congenital)
Q21.1
septum
Agenesis
septum
Anomaly, anomalous
(congenital) (unspecified type)
Q89.9
atrial
foramen
Closure
Common
Cor
due to
atrial septal
(ostium secundum type)
Q21.1
ostium
septal NOS
(heart)
Q21.9
Disease, diseased
See also Syndrome
Lutembacher's
(atrial septal defect with mitral stenosis)
Q21.1
Foramen ovale
(nonclosure) (patent) (persistent)
Q21.1
Fusion, fused
(congenital)
Imperfect
closure
(congenital)
foramen
ostium
septum
interatrial
(secundum)
Q21.1
interauricular
(secundum)
Q21.1
Lutembacher's disease or syndrome
(atrial septal defect with mitral stenosis)
Q21.1
Nonclosure
See also Imperfect, closure
foramen
Ostium
Patent
See also Imperfect, closure
foramen
Perforation, perforated
(nontraumatic) (of)
Persistence, persistent
(congenital)
foramen
ostium
Syndrome
See also Disease
Sibling Codes
Parent Sibling Codes
View in Tabular
| Code | Title |
|---|---|
| Q00-Q99 | Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) |
| Q20-Q28 | Congenital malformations of the circulatory system (Q20-Q28) |
| Q21 | Congenital malformations of cardiac septa |
| Q21.1 |
Atrial septal defect
Applicable to
Coronary sinus defect
Patent or persistent foramen ovale
Patent or persistent ostium secundum defect (type II)
Patent or persistent sinus venosus defect
|