ICD-9-CM Diagnosis Code 429.71
Diagnosis Code: 429.71 (Raw: 42971)
Description: Acquired cardiac septal defect
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code 429.71 is designated for Acquired cardiac septal defect. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.