2021 ICD-10-CM Diagnosis Code Q20.0

Common arterial trunk

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • Q20.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM Q20.0 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Q20.0 - other international versions of ICD-10 Q20.0 may differ.
Applicable To
  • Persistent truncus arteriosus
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as Q20.0. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • aortic septal defect (
    ICD-10-CM Diagnosis Code Q21.4

    Aortopulmonary septal defect

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
    Applicable To
    • Aortic septal defect
    • Aortopulmonary window
The following code(s) above Q20.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Q20.0:
  • Q00-Q99
    2021 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q20
    ICD-10-CM Diagnosis Code Q20

    Congenital malformations of cardiac chambers and connections

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • dextrocardia with situs inversus (Q89.3)
    • mirror-image atrial arrangement with situs inversus (Q89.3)
    Congenital malformations of cardiac chambers and connections
Approximate Synonyms
  • Common arterial trunk (truncus arteriosus)
  • Common truncus arteriosus
Clinical Information
  • A congenital anomaly caused by the failed development of truncus arteriosus into separate aorta and pulmonary artery. It is characterized by a single arterial trunk that forms the outlet for both heart ventricles and gives rise to the systemic, pulmonary, and coronary arteries. It is always accompanied by a ventricular septal defect.
  • A rare congenital cardiovascular disorder characterized by the failure of the embryologic structure truncus arteriosus to divide into the aorta and pulmonary trunk. It results in the presence of a single vessel instead of two vessles leading out of the heart. Clinical signs and symptoms include cyanosis that is present at birth, poor growth, dyspnea, tachypnea, arrhythmia, cardiomegaly, and heart failure. If it is not surgically repaired, it leads to death.
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q20.0 is considered exempt from POA reporting.
ICD-10-CM Q20.0 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 306 Cardiac congenital and valvular disorders with mcc
  • 307 Cardiac congenital and valvular disorders without mcc

Convert Q20.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to Q20.0:

ICD-10-CM Codes Adjacent To Q20.0
Q18.1 Preauricular sinus and cyst
Q18.2 Other branchial cleft malformations
Q18.3 Webbing of neck
Q18.4 Macrostomia
Q18.5 Microstomia
Q18.6 Macrocheilia
Q18.7 Microcheilia
Q18.8 Other specified congenital malformations of face and neck
Q18.9 Congenital malformation of face and neck, unspecified
Q20 Congenital malformations of cardiac chambers and connections
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
Q21 Congenital malformations of cardiac septa
Q21.0 Ventricular septal defect

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.