Q24

Other congenital malformations of heart

FY2027Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders/Q20–Q28 Congenital malformations of the circulatory system

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

Q24 is a non-billable ICD-10-CM code category for other congenital malformations of heart. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Q24.0 Dextrocardia, Q24.1 Levocardia, Q24.2 Cor triatriatum, Q24.3 Pulmonary infundibular stenosis and 5 more. Its coding notes include 1 Excludes1 entry and 1 Excludes2 entry.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.

Guidelines I.C.17Congenital malformations and genetic disordersRead the official text

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • endocardial fibroelastosis (I42.4)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (1 note)
Inherited from Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
  • inborn errors of metabolism (E70-E88)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
  • Codes from this chapter are not for use on maternal records

More specific codes under Q24 9