Q20.0
Billable codeCommon arterial trunk
The ICD-10 code for common arterial trunk is Q20.0.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- aortic septal defect (Q21.4)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Persistent truncus arteriosus
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Q20.1Double outlet right ventricle
- Q20.2Double outlet left ventricle
- Q20.3Discordant ventriculoarterial connection
- Q20.4Double inlet ventricle
- Q20.5Discordant atrioventricular connection
- Q20.6Isomerism of atrial appendages
- Q20.8Other congenital malformations of cardiac chambers and connections
- Q20.9Congenital malformation of cardiac chambers and connections, unspecified
- Q20.0Common arterial trunk
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7450
Associated MS-DRGs
Q20.0 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.