Q24.0 Dextrocardia

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.

Excludes1 (never code together)

• dextrocardia with situs inversus (Q89.3)
• isomerism of atrial appendages (with asplenia or polysplenia) (Q20.6)
• mirror-image atrial arrangement with situs inversus (Q89.3)

Applies from Q24 Other congenital malformations of heart

Excludes1 (never code together)

• endocardial fibroelastosis (I42.4)

MS-DRG index

Defines the logic of DRG(s) 306-307 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 746.87 Malposition of heart and cardiac apex (approximate)

Code annotations containing back-references to Q24.0

Back-references to Q24.0

• Type 1 Excludes: Q89.3 Situs inversus ("dextrocardia NOS (Q24.0)")

Back-references to Q24

• Code Also: I27.21 Secondary pulmonary arterial hypertension ("congenital heart disease (Q20-Q28)")
• Type 2 Excludes: P29 Cardiovascular disorders originating in the perinatal period ("congenital malformations of the circulatory system (Q20-Q28)")
• Code Also: Z71.87 Encounter for pediatric-to-adult transition counseling ("congenital malformations of the circulatory system (Q20-Q28)")

Diagnosis Index entries for Q24.0

• Dextrocardia (true)
• Malposition › congenital › heart › dextrocardia
• Transposition (congenital) › heart

Nearby codes

• Q24 Other congenital malformations of heart
• Q24.0 Dextrocardia (this code)
• Q24.1 Levocardia
• Q24.2 Cor triatriatum
• Q24.3 Pulmonary infundibular stenosis
• Q24.4 Congenital subaortic stenosis
• Q24.5 Malformation of coronary vessels