Coronary Atherosclerosis due to Lipid Rich Plaque

Effective October 1, 2008, code 414.3, Coronary atherosclerosis due to lipid rich plaque, has been created for identification of lipid rich plaque. The accumulation of lipids within coronary plaques is an important process in the progression of atherosclerosis and plaque vulnerability. Diagnostic information on the presence of lipid-rich plaque will help cardiologists determine the most appropriate type of stent (drug eluting versus bare metal) treatment and provide useful information in early detection and the subsequent risk of future coronary events. There is an instructional note to indicate that coronary atherosclerosis (414.00-414.07) is coded first and 414...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article explains a new diagnosis code addition tied to coronary atherosclerosis and lipid-rich plaque, along with the effective date and related instructional note. It is useful for coding professionals and cardiology-focused teams who need to understand the scope of the update and where it fits within the broader diagnosis category.

Why This Topic Matters

The update affects how coronary atherosclerosis cases related to lipid-rich plaque are reported in diagnosis coding and may influence documentation alignment for cardiology-related encounters. It also provides timing and classification context for code-set users reviewing changes in ischemic heart disease coding.

What You Will Learn

  • The purpose of the new diagnosis code described in the update
  • The effective date associated with the change
  • The broader diagnosis category in which the code is placed
  • The type of instructional note associated with the update

Who Should Read This

  • Medical coders
  • Coding auditors
  • Cardiology billing staff
  • Clinical documentation staff
  • Revenue cycle professionals

Codes Discussed

  • ICD-9-CM: 414.3

Code Ranges Discussed

  • ICD-9-CM: 414.00-414.07

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