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HomeICD-10 CodesQ20
ICD-10-CM
Billable

Q20

Classification
Category:
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Coding Guidance
Coding Guidance Q20 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.
Excludes 1
From
  • dextrocardia with situs inversus ( Q89.3 )
  • mirror-image atrial arrangement with situs inversus ( Q89.3 )
Excludes 2
From
  • inborn errors of metabolism ( E70-E88 )

More Specific Codes

Q20.0
Common arterial trunk Q20.0
Q20.1
Double outlet right ventricle Q20.1
Q20.2
Double outlet left ventricle Q20.2
Q20.3
Discordant ventriculoarterial connection Q20.3
Q20.4
Double inlet ventricle Q20.4
Q20.5
Discordant atrioventricular connection Q20.5
Q20.6
Isomerism of atrial appendages Q20.6
Q20.8
Other congenital malformations of cardiac chambers and connections Q20.8
Q20.9
Congenital malformation of cardiac chambers and connections, unspecified Q20.9
Q00-Q99
Q00-Q99 - Congenital malformations, deformations and chromosomal abnormalities

External Resources

2025 ICD-10 guidelines from CMS.gov