ICD-9 Code 447.1 - Stricture of artery

ICD-9-CM Diagnosis Code 447.1

Diagnosis Code: 447.1 (Raw: 4471)

Description: Stricture of artery

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 447.1 is designated for Stricture of artery. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical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.