ICD 10 CM Codes

Q21.1 Atrial septal defect
POA Exempt
Billable Code  is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
ICD-10-CM Q21.1 converts approximately to:ICD-9-CM
2018 ICD-9-CM 745.5 Ostium secundum type atrial septal defect
Alternate Description
Coronary sinus defect
Patent or persistent foramen ovale
Patent or persistent ostium secundum defect (type II)
Patent or persistent sinus venosus defect
ICD-10-CM Index Entry
ICD-10-CM Index entries containing back-references to ICD-10-CM '.Q21.1.'
Abnormal, abnormality, abnormalities; sinus venosus
Absence (of) (organ or part) (complete or partial); atrial septum (congenital)
Absence (of) (organ or part) (complete or partial); septum; atrial (congenital)
Agenesis; septum; atrial
Anomaly, anomalous (congenital) (unspecified type); atrial; septa
Anomaly, anomalous (congenital) (unspecified type); foramen; Botalli
Anomaly, anomalous (congenital) (unspecified type); foramen; ovale
Anomaly, anomalous (congenital) (unspecified type); heart; septum; auricular
Anomaly, anomalous (congenital) (unspecified type); heart; septum; interatrial
Closure; foramen ovale, imperfect
Closure; interauricular septum, defective
Common; atrium
Cor; triloculare; biventriculare
Cyanosis; due to; patent foramen botalli
Cyanosis; due to; persistent foramen ovale
Defect, defective; atrial septal (ostium secundum type)
Defect, defective; auricular septal
Defect, defective; coronary sinus
Defect, defective; interatrial septal
Defect, defective; interauricular septal
Defect, defective; ostium; secundum
Defect, defective; septal (heart) NOS; atrial
Defect, defective; sinus venosus
Deformity; atrial septal
Deformity; heart (congenital); septum; auricular
Disease, diseased; Lutembacher's (atrial septal defect with mitral stenosis)
Foramen ovale (nonclosure) (patent) (persistent)
Fusion, fused (congenital); atria
Fusion, fused (congenital); auricles, heart
Imperfect; closure (congenital); atrium (secundum)
Imperfect; closure (congenital); foramen; botalli
Imperfect; closure (congenital); foramen; ovale
Imperfect; closure (congenital); interatrial ostium or septum
Imperfect; closure (congenital); interauricular ostium or septum
Imperfect; closure (congenital); ostium; interatrial
Imperfect; closure (congenital); ostium; interauricular
Imperfect; closure (congenital); septum; atrial (secundum)
Imperfect; closure (congenital); septum; interatrial (secundum)
Imperfect; closure (congenital); septum; interauricular (secundum)
Lutembacher's disease or syndrome (atrial septal defect with mitral stenosis)
Nonclosure; foramen; botalli
Nonclosure; foramen; ovale
Ostium; secundum (arteriosum) (defect) (patent) (persistent)
Patent; foramen; botalli
Patent; foramen; ovale
Patent; interauricular septum
Patent; ostium secundum
Perforation, perforated (nontraumatic) (of); atrial septum, multiple
Persistence, persistent (congenital); foramen; Botalli
Persistence, persistent (congenital); foramen; ovale
Persistence, persistent (congenital); ostium; secundum
Syndrome; Lutembacher's