Effective from
- Inherited rules changed
Congenital malformation of cardiac septum, unspecified
Billable diagnosis code
CDC/NCHS · FY2019acquired cardiac septal defect (I51.0)
Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
Latest recorded change · FY2019
Effective from
Congenital malformation of cardiac septum, unspecified
Billable diagnosis code
CDC/NCHS · FY2019| 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 |
Historical mapping only; not an automatic code substitution.
Septal (heart) defect NOS
Codes from this chapter are not for use on maternal records
acquired cardiac septal defect (I51.0)
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| Q21.0 | Ventricular septal defect | Billable / specific |
| Q21.1 | Atrial septal defect | Category · further specificity required |
| Q21.2 | Atrioventricular septal defect | Category · further specificity required |
| Q21.3 | Tetralogy of Fallot | Billable / specific |
| Q21.4 | Aortopulmonary septal defect | Billable / specific |
| Q21.8 | Other congenital malformations of cardiac septa | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗