2023

  1. ICD-10-CM Codes
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  2. Q00-Q99
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  3. Q20-Q28
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  4. Q21-
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  5. 2023 ICD-10-CM Diagnosis Code Q21.0

2023 ICD-10-CM Diagnosis Code Q21.0

Ventricular septal defect

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
  • Q21.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM Q21.0 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of Q21.0 - other international versions of ICD-10 Q21.0 may differ.
Applicable To
  • Roger's disease
The following code(s) above Q21.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Q21.0:
  • Q00-Q99
    2023 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q21
    ICD-10-CM Diagnosis Code Q21

    Congenital malformations of cardiac septa

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • acquired cardiac septal defect (I51.0)
    Congenital malformations of cardiac septa
Approximate Synonyms
  • Membranous ventricular septum defect
  • Muscular ventricular septum defect
  • Supracristal ventricular septal defect
  • Ventricular septal defect (vsd), membranous
  • Ventricular septal defect (vsd), muscular
  • Ventricular septal defect (vsd), supracristal
Clinical Information
  • Developmental abnormalities in any portion of the ventricular septum resulting in abnormal communications between the two lower chambers of the heart. Classification of ventricular septal defects is based on location of the communication, such as perimembranous, inlet, outlet (infundibular), central muscular, marginal muscular, or apical muscular defect.
  • The presence of a defect (opening) in the septum that separates the two ventricles of the heart. The vsd can be congenital or acquired.
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q21.0 is considered exempt from POA reporting.
ICD-10-CM Q21.0 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 306 Cardiac congenital and valvular disorders with mcc
  • 307 Cardiac congenital and valvular disorders without mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert Q21.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to Q21.0:
  • Code Also: I27.83
    ICD-10-CM Diagnosis Code I27.83

    Eisenmenger's syndrome

      2018 - New Code 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Eisenmenger's complex
    • (Irreversible) Eisenmenger's disease
    • Pulmonary hypertension with right to left shunt related to congenital heart disease
    Code Also
    • underlying heart defect, if known, such as:
    • atrial septal defect (Q21.1-)
    • Eisenmenger's defect (Q21.8)
    • patent ductus arteriosus (Q25.0)
    • ventricular septal defect (Q21.0)

Diagnosis Index entries containing back-references to Q21.0:
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • atrioventricular
      • septum Q21.0
    • communication
      • left ventricle with right atrium Q21.0
    • heart Q24.9
      ICD-10-CM Diagnosis Code Q24.9

      Congenital malformation of heart, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital anomaly of heart
      • Congenital disease of heart
      • septum Q21.9
        ICD-10-CM Diagnosis Code Q21.9

        Congenital malformation of cardiac septum, unspecified

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
        Applicable To
        • Septal (heart) defect NOS
    • ventricular
      • septa Q21.0
    • Gerbode Q21.0
  • Closure
    • interventricular septum, defective Q21.0
  • Defect, defective Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
  • Deformity Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • heart (congenital) Q24.9
      ICD-10-CM Diagnosis Code Q24.9

      Congenital malformation of heart, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital anomaly of heart
      • Congenital disease of heart
      • septum Q21.9
        ICD-10-CM Diagnosis Code Q21.9

        Congenital malformation of cardiac septum, unspecified

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
        Applicable To
        • Septal (heart) defect NOS
        • ventricular Q21.0
  • Disease, diseased - see also Syndrome
    • Roger's Q21.0 (congenital interventricular septal defect)
  • Displacement, displaced
  • Fusion, fused (congenital)
    • ventricles, heart Q21.0
  • Gerbode defect Q21.0
  • Imperfect
  • Maladie de Roger Q21.0
  • Patent - see also Imperfect, closure
    • interventricular septum Q21.0
  • Roger's disease Q21.0

ICD-10-CM Codes Adjacent To Q21.0
Q20.0 Common arterial trunk
Q20.1 Double outlet right ventricle
Q20.2 Double outlet left ventricle
Q20.3 Discordant ventriculoarterial connection
Q20.4 Double inlet ventricle
Q20.5 Discordant atrioventricular connection
Q20.6 Isomerism of atrial appendages
Q20.8 Other congenital malformations of cardiac chambers and connections
Q20.9 Congenital malformation of cardiac chambers and connections, unspecified
Q21 Congenital malformations of cardiac septa
Q21.0 Ventricular septal defect
Q21.1 Atrial septal defect
Q21.10 …… unspecified
Q21.11 Secundum atrial septal defect
Q21.12 Patent foramen ovale
Q21.13 Coronary sinus atrial septal defect
Q21.14 Superior sinus venosus atrial septal defect
Q21.15 Inferior sinus venosus atrial septal defect
Q21.16 Sinus venosus atrial septal defect, unspecified
Q21.19 Other specified atrial septal defect
Q21.2 Atrioventricular septal defect

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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