Cardiac septal defect, acquired
- I51.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2025 edition of ICD-10-CM I51.0 became effective on October 1, 2024.
- This is the American ICD-10-CM version of I51.0 – other international versions of ICD-10 I51.0 may differ.
ICD-10-CM Coding Rules
- I51.0 is applicable to adult patients aged 15 – 124 years inclusive.
Applicable To
- Acquired septal atrial defect (old)
- Acquired septal auricular defect (old)
- Acquired septal ventricular defect (old)
Type 1 Excludes
The following code(s) above I51.0 contain annotation back-references
that may be applicable to I51.0:
- I00-I99 Diseases of the circulatory system
- I51 Complications and ill-defined descriptions of heart disease
Approximate Synonyms
- Acquired cardiac septal defect
ICD-10-CM I51.0 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):
- 314 Other circulatory system diagnoses with mcc
- 315 Other circulatory system diagnoses with cc
- 316 Other circulatory system diagnoses without cc/mcc
Convert I51.0 to ICD-9-CMCode History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change
Code annotations containing back-references to I51.0:
- Type 1 Excludes: Q21, I23.1, I23.2
Diagnosis Index entries containing back-references to I51.0:
- Defect, defectiveQ89.9
- septal (heart) Q21.9
- acquired I51.0 (atrial) (auricular) (ventricular) (old)
- septal (heart) Q21.9