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Q20 - Congenital malformations of cardiac chambers and connections


The ICD 10 Code for Congenital malformations of cardiac chambers and connections is listed as Q20.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: Q20
Description: Congenital malformations of cardiac chambers and connections
  • Excludes1: dextrocardia with situs inversus (Q89.3)
  • mirror-image atrial arrangement with situs inversus (Q89.3)
Chapter Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
ICD-10-CM Children (deeper level / typically more specific) of Q20:
Q20.0 - Common arterial trunk
Q20.1 - Double outlet right ventricle
Q20.2 - Double outlet left ventricle
Q20.3 - Discordant ventriculoarterial connection
Q20.4 - Double inlet ventricle
Q20.5 - Discordant atrioventricular connection
Q20.6 - Isomerism of atrial appendages
Q20.8 - Other congenital malformations of cardiac chambers and connections
Q20.9 - Congenital malformation of cardiac chambers and connections, unspecified