Q23Category · further specificity requiredCurrent

Congenital malformations of aortic and mitral valves

HierarchyQ20-Q28 · Q23

Code-level instructions

No additional notes.

Inherited instructions

Chapters 17 · Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)

Excludes 2

inborn errors of metabolism (E70-E88)

Note

Codes from this chapter are not for use on maternal records

More specific codes

Q23.0Congenital stenosis of aortic valveBillable / specific Q23.1Congenital insufficiency of aortic valveBillable / specific Q23.2Congenital mitral stenosisBillable / specific Q23.3Congenital mitral insufficiencyBillable / specific Q23.4Hypoplastic left heart syndromeBillable / specific Q23.8Other congenital malformations of aortic and mitral valvesCategory · further specificity required Q23.9Congenital malformation of aortic and mitral valves, unspecifiedBillable / specific

Code history

Latest recorded change · FY2019

ChangedUnchanged

FY2019

Effective from 2018-10-01

Inherited rules changed

Congenital malformations of aortic and mitral valves

Category — select a more specific code

CDC/NCHS · FY2019

All editions (19)

All editions	Effective from	Code history
FY2016	2015-10-01	First observed
FY2017	2016-10-01	No tabular change
FY2018	2017-10-01	No tabular change
FY2019	2018-10-01	Inherited rules changed
FY2020	2019-10-01	No tabular change
FY2020 · April	2020-04-01	No tabular change
FY2021	2020-10-01	No tabular change
FY2021 · 01-01	2021-01-01	No tabular change
FY2022	2021-10-01	No tabular change
FY2022 · 04-01	2022-04-01	No tabular change
FY2023	2022-10-01	No tabular change
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	No tabular change
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	No tabular change
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code edition