Diagnosis Code: Q21.20

Short Description: Atrioventricular septal defect, unsp as to part or complete

Long Description: Atrioventricular septal defect, unspecified as to partial or complete

The code Q21.20 is VALID for claim submission

Code Classification:

• Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • Congenital malformations of the circulatory system (Q20-Q28)
    • Congenital malformations of cardiac septa (Q21)
      • Q21.20 Atrioventricular septal defect, unsp as to part or complete

Code Version: 2022 ICD-10-CM

Synonyms

• Abnormality of atrioventricular valve leaflet in atrioventricular septal defect
• Atrioventricular septal defect - isolated atrial component
• Atrioventricular septal defect - isolated ventricular component
• Atrioventricular septal defect - ventricular component
• Atrioventricular septal defect - ventricular component under inferior bridging leaflet
• Atrioventricular septal defect - ventricular component under inferior bridging leaflet
• Atrioventricular septal defect - ventricular component under superior bridging leaflet
• Atrioventricular septal defect - ventricular component under superior bridging leaflet
• Atrioventricular septal defect - ventricular component under superior bridging leaflet
• Atrioventricular septal defect - ventricular component under superior bridging leaflet
• Atrioventricular septal defect - ventricular component under superior bridging leaflet
• Atrioventricular septal defect associated with tetralogy of Fallot
• Atrioventricular septal defect with additional muscular ventricular septal defect
• Atrioventricular septal defect with atrial and ventricular components and separate atrioventricular valves
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation
• Atrioventricular septal defect with atrioventricular valve regurgitation through left inferior bridging leaflet lateral mural commissure
• Atrioventricular septal defect with atrioventricular valve regurgitation through left septal commissure
• Atrioventricular septal defect with atrioventricular valve regurgitation through left superior bridging leaflet lateral mural commissure
• Atrioventricular septal defect with atrioventricular valve regurgitation through right anterosuperior inferior mural commissure
• Atrioventricular septal defect with atrioventricular valve regurgitation through right anterosuperior superior bridging leaflet commissure
• Atrioventricular septal defect with atrioventricular valve regurgitation through right inferior bridging leaflet inferior mural commissure
• Atrioventricular septal defect with atrioventricular valve regurgitation through right septal commissure
• Atrioventricular septal defect with balanced ventricles
• Atrioventricular septal defect with restrictive ventricular component
• Atrioventricular septal defect with separate atrioventricular orifices
• Atrioventricular septal defect with ventricular component and interchordal shunting under inferior bridging leaflet
• Atrioventricular septal defect with ventricular component and interchordal shunting under superior bridging leaflet
• Atrioventricular septal defect with ventricular component and shunting under connecting tongue with separate orifices
• Atrioventricular septal defect with ventricular component under free floating superior bridging leaflet and chords to papillary muscle at right ventricular free wall
• Atrioventricular septal defect with ventricular component under inferior bridging leaflet with chords to crest ventricular septum
• Atrioventricular septal defect with ventricular component under superior bridging leaflet with chords at crest ventricular septum
• Atrioventricular septal defect with ventricular component under superior bridging leaflet with chords to papillary muscle on right ventricular side septum
• Atrioventricular septal defect with ventricular component under superior bridging leaflet without chordal attachment to ventricular septal crest
• Atrioventricular septal defect with ventricular imbalance
• Atrioventricular septal defect with ventricular imbalance consisting of dominant left ventricle and hypoplastic right ventricle
• Atrioventricular septal defect with ventricular imbalance consisting of dominant right ventricle and hypoplastic left ventricle
• Atrioventricular septal defect, blepharophimosis, radial and anal defect syndrome
• Atrioventricular septal defect: atrial and ventricular components
• Common atrioventricular canal
• Common atrioventricular-type ventricular septal defect
• Common atrium
• Congenital abnormality of atrioventricular valve leaflet in atrioventricular septal defect
• Congenital abnormality of atrioventricular valve papillary muscle in atrioventricular septal defect
• Congenital abnormality of atrioventricular valves in atrioventricular septal defect
• Congenital atrioventricular septal defect
• Congenital blepharophimosis
• Deficiency of atrioventricular valve leaflet in atrioventricular septal defect
• Endocardial cushion defect
• Endocardial cushion defect
• Fenestration of atrioventricular valve leaflet in atrioventricular septal defect
• Flail atrioventricular valve leaflet in atrioventricular septal defect
• Gelatinous atrioventricular valve leaflet in atrioventricular septal defect
• Mass associated with atrioventricular valve leaflet in atrioventricular septal defect
• Noncoapting atrioventricular valve leaflet in atrioventricular septal defect
• Ostium primum defect
• Residual interatrial communication
• Spontaneous closure of atrial component of atrioventricular septal defect
• Spontaneous closure of ventricular component of atrioventricular septal defect
• Spontaneous closure of ventricular septal defect
• Spontaneous closure of ventricular septal defect due to accessory tissue of atrioventricular valve
• Thickened atrioventricular valve leaflet in atrioventricular septal defect
• Ventricular imbalance

Diagnostic Related Group(s)

The code Q21.20 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)

• Cardiac Congenital And Valvular Disorders With Mcc (306)
• Cardiac Congenital And Valvular Disorders Without Mcc (307)

References to Index of Diseases and Injuries

The code Q21.20 has the following ICD-10-CM references to the Index of Diseases and Injuries

• Inclusion Terms:
  • Atrioventricular canal, NOS
  • Endocardial cushion defect NOS
  • Ostium primum atrial septal defect (type I) NOS

Similar Codes

This page was last updated on: 10/1/2023

« Previous Code