Chapters 17 · Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Note
Codes from this chapter are not for use on maternal records
Q20Category · further specificity requiredArchived
Congenital malformations of cardiac chambers and connections
HierarchyQ20-Q28 · Q20
Code-level instructions
Inherited instructions
More specific codes
Q20.0Common arterial trunkBillable / specificQ20.1Double outlet right ventricleBillable / specificQ20.2Double outlet left ventricleBillable / specificQ20.3Discordant ventriculoarterial connectionBillable / specificQ20.4Double inlet ventricleBillable / specificQ20.5Discordant atrioventricular connectionBillable / specificQ20.6Isomerism of atrial appendagesBillable / specificQ20.8Other congenital malformations of cardiac chambers and connectionsBillable / specificQ20.9Congenital malformation of cardiac chambers and connections, unspecifiedBillable / specificCode history
Latest recorded change · FY2019
ChangedUnchanged
FY2019
Effective from
- Inherited rules changed
Congenital malformations of cardiac chambers and connections
Category — select a more specific code
CDC/NCHS · FY2019All 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 |