FY2019
Effective from
- Inherited rules changed
Hypoplasia of aorta
Billable diagnosis code
CDC/NCHS · FY2019hypoplasia of aorta in hypoplastic left heart syndrome (Q23.4)
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 · 2016-10-01
Latest recorded change · FY2019
Effective from
Hypoplasia of aorta
Billable diagnosis code
CDC/NCHS · FY2019| All editions | Effective from | Code history |
|---|---|---|
| FY2017 | 2016-10-01 | Added |
| 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.
The official Tabular List has no additional instructions at this code level.
Review the instructions inherited from its parent categories below. Inherited instructions ↓
Codes from this chapter are not for use on maternal records
hypoplasia of aorta in hypoplastic left heart syndrome (Q23.4)
Historical assignments from the CDC conversion table support data retrieval. They do not authorize substituting a previous code for the current code.
Previous assignment: Q25.4
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| Q25.40 | Congenital malformation of aorta unspecified | Billable / specific |
| Q25.41 | Absence and aplasia of aorta | Billable / specific |
| Q25.43 | Congenital aneurysm of aorta | Billable / specific |
| Q25.44 | Congenital dilation of aorta | Billable / specific |
| Q25.45 | Double aortic arch | Billable / specific |
| Q25.46 | Tortuous aortic arch | Billable / specific |
| Q25.47 | Right aortic arch | Billable / specific |
| Q25.48 | Anomalous origin of subclavian artery | Billable / specific |
| Q25.49 | Other congenital malformations of aorta | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗