Q21.16

Billable

Sinus venosus atrial septal defect, unspecified

Sinus venosus atrial septal defect, unspecified

Status

Billable / Specific

Parent Code

Q21.1

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Sinus venosus defect, NOS

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(7)
Q21.10

Atrial septal defect, unspecified

BillableQ21.11

Secundum atrial septal defect

BillableQ21.12

Patent foramen ovale

BillableQ21.13

Coronary sinus atrial septal defect

BillableQ21.14

Superior sinus venosus atrial septal defect

BillableQ21.15

Inferior sinus venosus atrial septal defect

BillableQ21.19

Other specified atrial septal defect

Billable
Also Known As / Clinical Terms(29)

SNOMED CT

UMLS

Clinical Terms

  • Atrial Septal Defect Sinus Venosus
  • Inferior sinus venosus defect
  • Sinus venosus defect with overriding inferior vena cava
  • Sinus venosus atrial septal defect (disorder)
  • Atrial septal defect, sinus venosus type
  • Superior sinus venosus defect
  • IVC - Sinus venosus defect with overriding inferior vena cava
  • atrial defect septal sinus venosus
  • SVC - Sinus venosus defect with overriding superior vena cava
  • Sinus venosus defect, NOS
  • Sinus venosus defect with overriding superior vena cava
  • Sinus venosus defect
Frequently Asked Questions
What is the ICD-10 code for sinus venosus atrial septal defect, unspecified?

The ICD-10-CM code for sinus venosus atrial septal defect, unspecified is Q21.16. The full clinical description is "Sinus venosus atrial septal defect, unspecified". Q21.16 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code Q21.16 mean?

ICD-10-CM code Q21.16 represents “Sinus venosus atrial septal defect, 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 Q21.16 a billable code?

Yes, Q21.16 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is Q21.16 in?

Q21.16 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).

What codes cannot be used with Q21.16?

Q21.16 has Excludes1 notes indicating codes that cannot be used together with it, including: acquired cardiac septal defect (I51.0).

What SNOMED CT codes does Q21.16 map to?

Q21.16 maps to 3 SNOMED CT concepts: 253370004, 253369000, 95268002. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for Q21.16?

Q21.16 is linked to 1 UMLS Concept Unique Identifier: C0344730. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does Q21.16 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like sinus venosus atrial septal defect, unspecified 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 Q21.16?

There is no direct ICD-11 mapping available for Q21.16 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.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Try FreeView API Docs

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.