Q21

Congenital malformations of cardiac septa

Non-billable header

Q21 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • Note: Codes from this chapter are not for use on maternal records

Excludes1

Not coded here — never report together with this code.

  • acquired cardiac septal defect (I51.0)

Excludes2

Not included here — may be reported together when both conditions exist.

  • inborn errors of metabolism (E70-E88)

More specific codes Q21

  • Q21.0Ventricular septal defectBillable
  • Q21.1Atrial septal defectHeader
  • Q21.2Atrioventricular septal defectHeader
  • Q21.3Tetralogy of FallotBillable
  • Q21.4Aortopulmonary septal defectBillable
  • Q21.8Other congenital malformations of cardiac septaBillable
  • Q21.9Congenital malformation of cardiac septum, unspecifiedBillable

Related codes

  • Q20Congenital malformations of cardiac chambers and connectionsHeader
  • Q22Congenital malformations of pulmonary and tricuspid valvesHeader
  • Q23Congenital malformations of aortic and mitral valvesHeader
  • Q24Other congenital malformations of heartHeader
  • Q25Congenital malformations of great arteriesHeader
  • Q26Congenital malformations of great veinsHeader
  • Q27Other congenital malformations of peripheral vascular systemHeader
  • Q28Other congenital malformations of circulatory systemHeader

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