Q20.9
BillableCongenital malform of cardiac chambers and connections, unsp
Congenital malformation of cardiac chambers and connections, unspecified
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
Related Codes(8)
Q20.0Common arterial trunk
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
Q20.8Oth congenital malform of cardiac chambers and connections
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(23)
SNOMED CT
- Congenital abnormality of cardiac connection253272009
- LA - Left atrial abnormality253352002
- Left atrial abnormality253352002
- Congenital abnormality of ventricles and ventricular septum253511007
- Congenital abnormality of left atrium447824005
- Congenital abnormality of right atrium448064005
- Congenital abnormality of atria788533006
- Congenital abnormality of atrium788533006
- Congenital atrial abnormality788533006
- Congenital anomaly of cardiac chamber15964981000119104
UMLS
Clinical Terms
- Congenital abnormality of atrium
- Congenital abnormality of right atrium
- LA - Left atrial abnormality
- Congenital abnormality of left atrium
- Left atrial abnormality
- Congenital anomaly of cardiac chamber
- Congenital atrial abnormality
- Congenital abnormality of cardiac connection
- Congenital abnormality of atria
- Congenital abnormality of ventricles and ventricular septum
Frequently Asked Questions
What is the ICD-10 code for congenital malform of cardiac chambers and connections, unsp?
The ICD-10-CM code for congenital malform of cardiac chambers and connections, unsp is Q20.9. The full clinical description is "Congenital malformation of cardiac chambers and connections, unspecified". Q20.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Q20.9 mean?
ICD-10-CM code Q20.9 represents “Congenital malformation of cardiac chambers and connections, unspecified”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.
Is Q20.9 a billable code?
Yes, Q20.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Q20.9 in?
Q20.9 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q20.9?
Q20.9 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 SNOMED CT codes does Q20.9 map to?
Q20.9 maps to 7 SNOMED CT concepts: 788533006, 253272009, 447824005, 448064005, 253511007, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Q20.9?
Q20.9 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 Q20.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like congenital malform of cardiac chambers and connections, unsp 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 Q20.9?
Q20.9 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.