AutoICD API

Q21.21

Billable

Partial atrioventricular septal defect

Partial atrioventricular septal defect

Status

Billable / Specific

Parent Code

Q21.2

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Incomplete atrioventricular canal
  • Incomplete atrioventricular septal defect
  • Incomplete endocardial cushion defect
  • Ostium primum atrial septal defect (type I) with separate atrioventricular valves
  • Partial atrioventricular canal
  • Partial endocardial cushion defect

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(3)
Q21.20

Atrioventricular septal defect, unsp as to part or complete

BillableQ21.22

Transitional atrioventricular septal defect

BillableQ21.23

Complete atrioventricular septal defect

Billable
Also Known As / Clinical Terms(69)

SNOMED CT

UMLS

Clinical Terms

  • Atrial septal defect, primum-type
  • Atrial Septal Defect, Primum Type
  • Partial common atrioventricular canal
  • Partial AVSD
  • Partial endocardial cushion defect
  • Partial defect of atrioventricular canal (disorder)
  • 1 ASD - Primum atrial septal defect
  • Primum atrioventricular canal defect
  • ASD I - Primum atrial septal defect
  • Endocardial cushion defect
  • Atrioventricular canal defect, partial
  • Partial atrioventricular canal defect
  • Atrioventricular septal defect - isolated atrial component
  • Septum primum defect
  • Incomplete AVSD
  • Partial atrioventricular septal defects
  • Atrial septal defect with endocardial cushion defect, partial type
  • Atrioventricular septal defect - isolated atrial component (disorder)
  • Partial AVC defect
  • Atrioventricular septal defect, incomplete
  • Incomplete atrioventricular septal defect
  • Partial defect of atrioventricular canal
  • ostium primum ASD
  • Incomplete endocardial cushion defect
  • Primum atrial septal defect
  • Partial atrioventricular canal
  • PAVSD
  • Incomplete atrioventricular canal
  • ASD1 - Primum atrial septal defect
  • Ostium primum atrial septal defect (type I) with separate atrioventricular valves
  • Atrioventricular septal defect, partial
  • Atrioventricular canal, partial
Frequently Asked Questions
What is the ICD-10 code for partial atrioventricular septal defect?

The ICD-10-CM code for partial atrioventricular septal defect is Q21.21. The full clinical description is "Partial atrioventricular septal defect". Q21.21 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code Q21.21 mean?

ICD-10-CM code Q21.21 represents “Partial atrioventricular septal defect”. 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 Q21.21 a billable code?

Yes, Q21.21 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is Q21.21 in?

Q21.21 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).

What codes cannot be used with Q21.21?

Q21.21 has Excludes1 notes indicating codes that cannot be used together with it, including: acquired cardiac septal defect (I51.0).

What SNOMED CT codes does Q21.21 map to?

Q21.21 maps to 3 SNOMED CT concepts: 60732002, 15459006, 718216009. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for Q21.21?

Q21.21 is linked to 6 UMLS Concept Unique Identifiers: C0344735, C4023290, C5676493, C5676494, C5676495, and 1 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does Q21.21 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like partial atrioventricular septal defect 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 Q21.21?

There is no direct ICD-11 mapping available for Q21.21 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.

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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.