Q21.8

Other congenital malformations of cardiac septa

Billable / specificPOA exempt

Q21.8 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Eisenmenger's defect
  • Pentalogy of Fallot

Includes (from Q21)

  • 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) (from Q21)

Excludes2

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

  • inborn errors of metabolism (E70-E88) (from Q21)

Code also

An additional code may be needed.

  • , if applicable:
  • Eisenmenger's complex (I27.83)
  • Eisenmenger's syndrome (I27.83)

Also known as

  • Eisenmenger's defect
  • Pentalogy of Fallot
  • Anomaly, anomalous, cardiac, septal closure, specified NEC
  • Anomaly, anomalous, Eisenmenger's
  • Anomaly, anomalous, heart, septum, specified NEC
  • Bulbus cordis
  • Defect, defective, Eisenmenger's
  • Eisenmenger's, defect
  • Fallot's, pentalogy
  • Malformation, cardiac, septum, specified type NEC
  • Persistence, persistent, bulbus cordis in left ventricle
  • Premature, closure, foramen ovale

Parent code

  • Q21Congenital malformations of cardiac septaHeader

Related codes

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

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