ICD-10-CM Code Q20.4

Double inlet ventricle

Version 2020 Billable Code POA Exempt

Valid for Submission

Q20.4 is a billable code used to specify a medical diagnosis of double inlet ventricle. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Q20.4 might also be used to specify conditions or terms like abnormality of left atrioventricular valve chordae tendinae, abnormality of left atrioventricular valve in double inlet ventricle, abnormality of left atrioventricular valve papillary muscle, abnormality of left atrioventricular valve papillary muscle, abnormality of right atrioventricular valve chordae tendinae, abnormality of right atrioventricular valve in double inlet ventricle, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

ICD-10:Q20.4
Short Description:Double inlet ventricle
Long Description:Double inlet ventricle

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Q20.4:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Common ventricle
  • Cor triloculare biatriatum
  • Single ventricle

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Q20.4 are found in the index:


Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abnormality of left atrioventricular valve chordae tendinae
  • Abnormality of left atrioventricular valve in double inlet ventricle
  • Abnormality of left atrioventricular valve papillary muscle
  • Abnormality of left atrioventricular valve papillary muscle
  • Abnormality of right atrioventricular valve chordae tendinae
  • Abnormality of right atrioventricular valve in double inlet ventricle
  • Abnormality of right atrioventricular valve papillary muscle
  • Abnormality of right atrioventricular valve papillary muscle
  • Absent left atrioventricular valve leaflets
  • Absent left atrioventricular valve papillary muscle
  • Absent right atrioventricular valve leaflets
  • Accessory tissue on left atrioventricular valve leaflet
  • Arcade abnormality of left atrioventricular valve chordae
  • Common atrioventricular orifice in double inlet ventricle
  • Common ventricle
  • Congenital abnormality of left atrioventricular valve chordae tendinae in double inlet ventricle
  • Congenital abnormality of left atrioventricular valve in double inlet ventricle
  • Congenital abnormality of right atrioventricular valve chordae tendinae in double inlet ventricle
  • Congenital abnormality of right atrioventricular valve in double inlet ventricle
  • Congenital abnormality of right atrioventricular valve leaflet in double inlet ventricle
  • Congenital abnormality of right atrioventricular valve papillary muscle in double inlet ventricle
  • Double inlet left ventricle
  • Double inlet right ventricle
  • Double inlet to ventricle of indeterminate morphology
  • Double inlet ventricle
  • Double inlet ventricle
  • Double orifice of left atrioventricular valve
  • Double orifice of right atrioventricular valve
  • Double orifice of right atrioventricular valve in double inlet ventricle
  • Ebstein's anomaly of left atrioventricular valve
  • Ebstein's anomaly of left atrioventricular valve in functionally univentricular heart
  • Functional single ventricle
  • Functionally univentricular heart
  • Fused left atrioventricular valve papillary muscles
  • Hypoplasia of left atrioventricular valve annulus in double inlet ventricle
  • Hypoplasia of right atrioventricular valve annulus in double inlet ventricle
  • Hypoplastic left atrioventricular valve papillary muscle
  • Imperforate left atrioventricular valve
  • Left atrioventricular valve atresia
  • Left atrioventricular valve chordae to outlet septum
  • Left atrioventricular valve chordae too long
  • Left atrioventricular valve chordae too short
  • Left atrioventricular valve dysplasia
  • Left atrioventricular valve hypoplasia
  • Left atrioventricular valve hypoplasia
  • Left atrioventricular valve leaflet abnormality
  • Left atrioventricular valve leaflet abnormality
  • Left atrioventricular valve leaflet dysplasia
  • Left atrioventricular valve prolapse
  • Left atrioventricular valve stenosis
  • Left atrioventricular valve stenosis
  • Left atrioventricular valve stenosis in double inlet ventricle
  • Left atrioventricular valve stenosis in double inlet ventricle
  • Overriding left atrioventricular valve
  • Overriding right atrioventricular valve
  • Parachute malformation of left atrioventricular valve
  • Parachute malformation of right atrioventricular valve
  • Right atrioventricular valve dysplasia
  • Right atrioventricular valve hypoplasia
  • Right atrioventricular valve hypoplasia
  • Right atrioventricular valve leaflets absent in double inlet ventricle
  • Right atrioventricular valve stenosis
  • Single left ventricle
  • Single right ventricle
  • Straddling left atrioventricular valve
  • Straddling right atrioventricular valve
  • Straddling tricuspid valve
  • True cleft of left atrioventricular valve leaflet
  • Two atrioventricular valves in double inlet ventricle

Diagnostic Related Groups

The ICD-10 code Q20.4 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.

  • 306 - CARDIAC CONGENITAL AND VALVULAR DISORDERS WITH MCC
  • 307 - CARDIAC CONGENITAL AND VALVULAR DISORDERS WITHOUT MCC

Present on Admission (POA)

Q20.4 is exempt from POA reporting - 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. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Q20.4 to ICD-9

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Congenital malformations of the circulatory system (Q20-Q28)
      • Congenital malformations of cardiac chambers and connections (Q20)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

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


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