AutoICD API

Q20

Non-billable

Congenital malformations of cardiac chambers and connections

Congenital malformations of cardiac chambers and connections

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Child Codes

9

ICD-11 Mapping

1 equivalent

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Child Codes (9)

ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

Also Known As / Clinical Terms(3)
Frequently Asked Questions
What is the ICD-10 code for congenital malformations of cardiac chambers and connections?

The ICD-10-CM code for congenital malformations of cardiac chambers and connections is Q20. The full clinical description is "Congenital malformations of cardiac chambers and connections". Q20 is a non-billable header code. Use a more specific child code for billing purposes.

What does ICD-10 code Q20 mean?

ICD-10-CM code Q20 represents “Congenital malformations of cardiac chambers and connections”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a non-billable header code. Use a more specific child code for billing purposes.

Is Q20 a billable code?

No, Q20 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 9 child codes under Q20.

What chapter is Q20 in?

Q20 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).

What codes cannot be used with Q20?

Q20 has Excludes1 notes indicating codes that cannot be used together with it, including: dextrocardia with situs inversus (Q89.3); mirror-image atrial arrangement with situs inversus (Q89.3).

What are the subcategories under Q20?

Q20 has 9 child codes, including: Q20.0 (Common arterial trunk), Q20.1 (Double outlet right ventricle), Q20.2 (Double outlet left ventricle), Q20.3 (Discordant ventriculoarterial connection), and 5 more.

What are the UMLS CUIs for Q20?

Q20 is linked to 1 UMLS Concept Unique Identifier: C0478009. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does Q20 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like congenital malformations of cardiac chambers and connections affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of Q20?

Q20 maps to the ICD-11 code: LA8Z (Structural developmental anomaly of heart or great vessels, unspecified).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.