ICD-10-CM Codes
Q00-Q99
Q20-Q28
Q23-
2023 ICD-10-CM Diagnosis Code Q23.2

2023 ICD-10-CM Diagnosis Code Q23.2

Congenital mitral stenosis

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

POA Exempt

Q23.2 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 Q23.2 became effective on October 1, 2022.
This is the American ICD-10-CM version of Q23.2 - other international versions of ICD-10 Q23.2 may differ.

Applicable To

Congenital mitral atresia

The following code(s) above Q23.2 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 Q23.2:

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

Approximate Synonyms

Congenital atresia of mitral valve
Congenital mitral valve atresia (at birth)
Congenital mitral valve stenosis (at birth)
Congenital stenosis of mitral valve
Congenital supravalvular mitral stenosis
Congenital supravalvular mitral stenosis (at birth)
Mitral valve atresia, congenital (present at birth)
Stenosis (narrowing) of mitral valve, congenital
Supravalvular stenosis (narrowing) of mitral valve

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.

Q23.2 is considered exempt from POA reporting.

ICD-10-CM Q23.2 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

Convert Q23.2 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 Q23.2:

Type 1 Excludes: I34

ICD-10-CM Diagnosis Code I34
Nonrheumatic mitral valve disorders
Type 1 Excludes
- mitral valve disease (I05.9)
- mitral valve failure (I05.8)
- mitral valve stenosis (I05.0)
- mitral valve disorder of unspecified cause with diseases of aortic and/or tricuspid valve(s) (I08.-)
- mitral valve disorder of unspecified cause with mitral stenosis or obstruction (I05.0)
- mitral valve disorder specified as congenital (Q23.2, Q23.9)
- mitral valve disorder specified as rheumatic (I05.-)

Diagnosis Index entries containing back-references to Q23.2:

Anomaly, anomalous (congenital) (unspecified type) Q89.9
ICD-10-CM Diagnosis Code Q89.9
Congenital malformation, unspecified
Applicable To
Congenital anomaly NOS
Congenital deformity NOS
- 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
  - valve NEC Q24.8
    ICD-10-CM Diagnosis Code Q24.8
    Other specified congenital malformations of heart
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    Congenital diverticulum of left ventricle
    Congenital malformation of myocardium
    Congenital malformation of pericardium
    Malposition of heart
    Uhl's disease
    - mitral
      - stenosis Q23.2
- mitral (leaflets) (valve) Q23.9
  ICD-10-CM Diagnosis Code Q23.9
  Congenital malformation of aortic and mitral valves, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
  - stenosis Q23.2
Atresia, atretic
- mitral valve Q23.2
Deformity Q89.9
ICD-10-CM Diagnosis Code Q89.9
Congenital malformation, unspecified
Applicable To
Congenital anomaly NOS
Congenital deformity NOS
- mitral (leaflets) (valve) I05.8
  ICD-10-CM Diagnosis Code I05.8
  Other rheumatic mitral valve diseases
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Rheumatic mitral (valve) failure
  - parachute Q23.2
  - stenosis, congenital Q23.2
Disease, diseased - see also Syndrome
- Duroziez's Q23.2 (congenital mitral stenosis)
Duroziez's disease Q23.2 (congenital mitral stenosis)
Fusion, fused (congenital)
- cusps, heart valve NEC Q24.8
  ICD-10-CM Diagnosis Code Q24.8
  Other specified congenital malformations of heart
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
  Applicable To
  Congenital diverticulum of left ventricle
  Congenital malformation of myocardium
  Congenital malformation of pericardium
  Malposition of heart
  Uhl's disease
  - mitral Q23.2
- commissure, mitral valve Q23.2
Parachute mitral valve Q23.2
Stenosis, stenotic (cicatricial) - see also Stricture
- mitral (chronic) (inactive) (valve) I05.0
  ICD-10-CM Diagnosis Code I05.0
  Rheumatic mitral stenosis
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Mitral (valve) obstruction (rheumatic)
  - congenital Q23.2
- valve (cardiac) (heart) I38
  - see also Endocarditis
  ICD-10-CM Diagnosis Code I38
  Endocarditis, valve unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Includes
  endocarditis (chronic) NOS
  valvular incompetence NOS
  valvular insufficiency NOS
  valvular regurgitation NOS
  valvular stenosis NOS
  valvulitis (chronic) NOS
  Type 1 Excludes
  congenital insufficiency of cardiac valve NOS (Q24.8)
  congenital stenosis of cardiac valve NOS (Q24.8)
  endocardial fibroelastosis (I42.4)
  endocarditis specified as rheumatic (I09.1)
  - congenital Q24.8
    ICD-10-CM Diagnosis Code Q24.8
    Other specified congenital malformations of heart
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    Congenital diverticulum of left ventricle
    Congenital malformation of myocardium
    Congenital malformation of pericardium
    Malposition of heart
    Uhl's disease
    - mitral Q23.2
Stricture - see also Stenosis
- heart - see also Disease, heart
  - valve I38
    - see also Endocarditis
    ICD-10-CM Diagnosis Code I38
    Endocarditis, valve unspecified
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Includes
    endocarditis (chronic) NOS
    valvular incompetence NOS
    valvular insufficiency NOS
    valvular regurgitation NOS
    valvular stenosis NOS
    valvulitis (chronic) NOS
    Type 1 Excludes
    congenital insufficiency of cardiac valve NOS (Q24.8)
    congenital stenosis of cardiac valve NOS (Q24.8)
    endocardial fibroelastosis (I42.4)
    endocarditis specified as rheumatic (I09.1)
    - mitral Q23.2
- valve (cardiac) (heart) - see also Endocarditis
  - congenital
    - mitral Q23.2
Supernumerary (congenital)
- cusps, heart valve NEC Q24.8
  ICD-10-CM Diagnosis Code Q24.8
  Other specified congenital malformations of heart
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
  Applicable To
  Congenital diverticulum of left ventricle
  Congenital malformation of myocardium
  Congenital malformation of pericardium
  Malposition of heart
  Uhl's disease
  - mitral Q23.2
- mitral cusps Q23.2

ICD-10-CM Codes Adjacent To Q23.2

Q22.2 Congenital pulmonary valve insufficiency

Q22.3 Other congenital malformations of pulmonary valve

Q22.4 Congenital tricuspid stenosis

Q22.5 Ebstein's anomaly

Q22.6 Hypoplastic right heart syndrome

Q22.8 Other congenital malformations of tricuspid valve

Q22.9 Congenital malformation of tricuspid valve, unspecified

Q23 Congenital malformations of aortic and mitral valves

Q23.0 Congenital stenosis of aortic valve

Q23.1 Congenital insufficiency of aortic valve

Q23.2 Congenital mitral stenosis

Q23.3 Congenital mitral insufficiency

Q23.4 Hypoplastic left heart syndrome

Q23.8 Other congenital malformations of aortic and mitral valves

Q23.9 Congenital malformation of aortic and mitral valves, unspecified

Q24 Other congenital malformations of heart

Q24.0 Dextrocardia

Q24.1 Levocardia

Q24.2 Cor triatriatum

Q24.3 Pulmonary infundibular stenosis

Q24.4 Congenital subaortic stenosis

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

2023 ICD-10-CM Diagnosis Code Q23.2

Congenital mitral stenosis

Congenital malformations, deformations and chromosomal abnormalities

Nonrheumatic mitral valve disorders

Congenital malformation, unspecified

Congenital malformation of heart, unspecified

Other specified congenital malformations of heart

Congenital malformation of aortic and mitral valves, unspecified

Congenital malformation, unspecified

Other rheumatic mitral valve diseases

Other specified congenital malformations of heart

Rheumatic mitral stenosis

Endocarditis, valve unspecified

Other specified congenital malformations of heart

Endocarditis, valve unspecified

Other specified congenital malformations of heart