Q23.2 ICD-10-CM Code: Congenital mitral stenosis
Q23.2 is the billable ICD-10-CM code for “Congenital mitral stenosis” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
Q23.2Congenital mitral stenosis
ICD-10-CM diagnosis code · United States clinical modification
Where Q23.2 sits
- 1
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- 2
Section
Congenital malformations of the circulatory system (Q20-Q28)
- 3
Category Q23
Congenital malformations of aortic and mitral valves
- 4
Code Q23.2
Congenital mitral stenosis
Notes for this code
Inclusion terms
- Congenital mitral atresia
Code first
No “code first” instruction is listed for Q23.2.
Use additional code
No “use additional code” instruction is listed for Q23.2.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Q23.2.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Q23.2.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code Q23.2 mean?
Q23.2 is the FY 2027 U.S. ICD-10-CM code for “Congenital mitral stenosis.”
Is Q23.2 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, Q23.2 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is Q23.2 located in ICD-10-CM?
Q23.2 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Congenital malformations of the circulatory system (Q20-Q28) (Q20–Q28), under category Q23, Congenital malformations of aortic and mitral valves.
What coding notes are listed for Q23.2?
Its listed inclusion terms are Congenital mitral atresia. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.