ICD-10-CM 2027
ICD-10 code for arterial trunk common
From the official ICD-10-CM alphabetic index entry “Common › arterial trunk”. Page updated September 29, 2026.
About coding arterial trunk common
The ICD-10-CM code for arterial trunk common is Q20.0 (Common arterial trunk).
Within Q20 (congenital malformations of cardiac chambers and connections), Q20.0 is specifically for common arterial trunk. Related codes cover Double outlet right ventricle (Q20.1), Double outlet left ventricle (Q20.2), Discordant ventriculoarterial connection (Q20.3), Double inlet ventricle (Q20.4), Discordant atrioventricular connection (Q20.5), Isomerism of atrial appendages (Q20.6), other congenital malformations of cardiac chambers and connections (Q20.8) and congenital malformation of cardiac chambers and connections, unspecified (Q20.9).
Don't report Q20.0 together with the conditions in its Excludes1 note: aortic septal defect (Q21.4).
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for Q20.0)
- aortic septal defect (Q21.4)
Common questions about arterial trunk common ICD-10 codes
What is the ICD-10 code for arterial trunk common?
- Q20.0 — Common arterial trunk.
Is Q20.0 billable?
- Yes. Q20.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q20.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q20.0 as a principal diagnosis.
Is Q20.0 a CC or MCC?
- Q20.0 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.