ICD-9 Code 459.12 - Postphlebetic syndrome with inflammation

ICD-9-CM Diagnosis Code 459.12

Diagnosis Code: 459.12 (Raw: 45912)

Description: Postphlebetic syndrome with inflammation

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 459.12 is designated for Postphlebetic syndrome with inflammation. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical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.