ICD-10 Diagnosis Code Q20.3

Discordant ventriculoarterial connection

Diagnosis Code Q20.3

ICD-10: Q20.3
Short Description: Discordant ventriculoarterial connection
Long Description: Discordant ventriculoarterial connection
This is the 2017 version of the ICD-10-CM diagnosis code Q20.3

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities
    • Congenital malformations of the circulatory system (Q20-Q28)
      • Congenital malformations of cardiac chambers and connections (Q20)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code Q20.3 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Q20.3 is exempt from POA reporting.

  • Abnormal ventriculoarterial connection
  • Complete transposition of great vessels
  • Congenital anomaly of aortic arch AND/OR descending aorta
  • Congenital anomaly of aortic arch AND/OR descending aorta
  • D - transposition of the great vessels
  • Dextraposition of aorta
  • Dextroposition of aorta
  • Dextrotransposition of aorta
  • Dextrotransposition of the great arteries
  • Discordant ventriculoarterial connection
  • Double outlet ventriculoarterial connections
  • Incomplete great vessel transposition
  • Right aortic arch
  • Right aortic arch and left descending aorta
  • Right aortic arch and right descending aorta
  • Right descending aorta
  • Single ventricular outlet above both ventricles
  • Single ventricular outlet above left ventricle
  • Single ventricular outlet above ventricle of indeterminate morphology
  • Total great vessel transposition
  • Transposition of aorta

Index of Diseases and Injuries
References found for the code Q20.3 in the Index of Diseases and Injuries:

Information for Patients

Congenital Heart Defects

A congenital heart defect is a problem with the structure of the heart. It is present at birth. Congenital heart defects are the most common type of birth defect. The defects can involve the walls of the heart, the valves of the heart, and the arteries and veins near the heart. They can disrupt the normal flow of blood through the heart. The blood flow can slow down, go in the wrong direction or to the wrong place, or be blocked completely.

Doctors use a physical exam and special heart tests to diagnose congenital heart defects. They often find severe defects during pregnancy or soon after birth. Signs and symptoms of severe defects in newborns include

  • Rapid breathing
  • Cyanosis - a bluish tint to the skin, lips, and fingernails
  • Fatigue
  • Poor blood circulation

Many congenital heart defects cause few or no signs and symptoms. They are often not diagnosed until children are older.

Many children with congenital heart defects don't need treatment, but others do. Treatment can include medicines, catheter procedures, surgery, and heart transplants. The treatment depends on the type of the defect, how severe it is, and a child's age, size, and general health.

NIH: National Heart, Lung, and Blood Institute

  • Atrial septal defect
  • Bicuspid aortic valve
  • Congenital heart defect corrective surgeries
  • Congenital heart disease
  • Cyanotic heart disease
  • Dextrocardia
  • Echocardiogram -- children
  • Heart murmurs and other sounds
  • Patent ductus arteriosus
  • Ventricular septal defect

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