Q21.2
Non-billableAtrioventricular septal defect
Atrioventricular septal defect
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Atrioventricular canal defect
- Endocardial cushion defect
- Ostium primum atrial septal defect (type I)
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- acquired cardiac septal defect (I51.0)
Excludes 2
Conditions not included here, but the patient may have both
- inborn errors of metabolism (E70-E88)
Child Codes (4)
Also Known As / Clinical Terms
UMLS
- ATRIOVENTRICULAR CANAL DEFECTC1389016
- AVC DEFECTC1389016
- AVC DefectC1389016
- AVCDC1389016
- Atrioventricular Canal DefectC1389016
- Atrioventricular canal defectC1389016
- Atrioventricular septal defectC1389016
- ATRIOVENTRICULAR SEPTAL DEFECTC1389018
- AV Septal DefectC1389018
- AVSDC1389018
- Atrioventricular Septal DefectC1389018
- Atrioventricular septal defect (AVSD)C1389018
- Atrioventricular septal defectsC1389018
- Common AV CanalC1389018
- Common Atrioventricular CanalC1389018
- atrioventricular defects septalC1389018
- atrioventricular septal defectC1389018
- Atrioventricular canalC0014116
- Cushion Defect, EndocardialC0014116
- Cushion Defects, EndocardialC0014116
- Defect, Endocardial CushionC0014116
- Defects, Endocardial CushionC0014116
- ECDC0014116
- ENDOCARDIAL CUSHION DEFECTC0014116
- Endocardial Cushion DefectC0014116
- Endocardial Cushion DefectsC0014116
- Endocardial cushion defectC0014116
- Endocardial cushion defect (disorder)C0014116
- Endocardial cushion defect NOSC0014116
- Endocardial cushion defect, unspecified typeC0014116
- Endocardial cushion defectsC0014116
- atrioventricular canalC0014116
- canal atrioventricularC0014116
- endocardial cushion defectC0014116
- endocardial cushion defectsC0014116
- Ostium primum atrial septal defect (type I)C2910128
- Ostium primum atrial septal defect (type I) NOSC2910128
Frequently Asked Questions
What is the ICD-10 code for atrioventricular septal defect?
The ICD-10-CM code for atrioventricular septal defect is Q21.2. The full clinical description is "Atrioventricular septal defect". Q21.2 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code Q21.2 mean?
ICD-10-CM code Q21.2 represents "Atrioventricular septal defect". 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 Q21.2 a billable code?
No, Q21.2 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under Q21.2.
What chapter is Q21.2 in?
Q21.2 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q21.2?
Q21.2 has Excludes1 notes indicating codes that cannot be used together with it, including: acquired cardiac septal defect (I51.0).
What are the subcategories under Q21.2?
Q21.2 has 4 child codes, including: Q21.20 (Atrioventricular septal defect, unsp as to part or complete), Q21.21 (Partial atrioventricular septal defect), Q21.22 (Transitional atrioventricular septal defect), Q21.23 (Complete atrioventricular septal defect).
What are the UMLS CUIs for Q21.2?
Q21.2 is linked to 4 UMLS Concept Unique Identifiers: C1389016, C1389018, C0014116, C2910128. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.