Specific code icon 2014 ICD-10-CM Diagnosis Code Q20.4

Double inlet ventricle

  • Q20.4 is a billable ICD-10-CM code that can be used to specify a diagnosis.
  • On October 1, 2015 ICD-10-CM will replace ICD-9-CM in the United States, therefore, Q20.4 and all other ICD-10-CM codes should only be used for training or planning purposes until then.
Clinical Information
  • An umbrella term used to describe several very different complex congenital heart defects that share the same problem: the heart has only one functional ventricle (anatomically right or left or indeterminate) supplying the systemic circulation. These defects include tricuspid atresia, hypoplastic left or right heart syndrome, double outlet right ventricle, double inlet left ventricle, and other forms of single ventricle defects.
Applicable To
  • Common ventricle
  • Cor triloculare biatriatum
  • Single ventricle
Present On Admission
  • Q20.4 is considered exempt from POA reporting.
Mortality Data
  • Between 1999-2007 there were 244 deaths in the United States where ICD-10 Q20.4 was indicated as the underlying cause of death [source: cdc.govlink to cdc.gov]
  • ICD-10 Q20.4 as underlying cause of death data broken down by: gender, age, race, year
ICD-10-CM Q20.4 is grouped within Diagnostic Related Group(s) (MS-DRG v30.0):
  • 306 Cardiac congenital & valvular disorders with mcc
  • 307 Cardiac congenital & valvular disorders without mcc
Convert ICD-10-CM Q20.4 to ICD-9-CM
The following ICD-10-CM Index entries contain back-references to ICD-10-CM Q20.4: