Type of Contrast Medium for Angiography (High Osmolar, Low Osmolar, and Other)

When a diagnostic percutaneous left heart catheterization is performed, along with right and left coronary arteriography and left ventriculogram using nonionic iso-osmolar contrast, such as Visipaque, how is the coder to determine the type of contrast used to perform the angiography? The ICD-10-PCS Table B21 includes three choices: high osmolar, low osmolar, and other contrast. ...

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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 addresses a coding question about contrast classification for angiography in the context of ICD-10-PCS. It focuses on how facilities may determine the contrast category used for diagnostic catheterization and coronary imaging procedures, and it notes the importance of internal facility-specific guidance developed with radiology staff. The piece is intended for facility coders and others involved in inpatient procedure coding who need to understand the broad contrast categories referenced in the ICD-10-PCS system.

Why This Topic Matters

Accurate contrast classification is part of complete inpatient procedure coding and may depend on how a facility identifies the imaging agent used. The article helps coders and radiology teams align on documentation and internal coding practices.

What You Will Learn

  • How the article frames contrast selection for angiography in ICD-10-PCS
  • Why facility-specific processes may be needed to identify contrast media used in imaging
  • The role of radiology collaboration in documenting contrast type for coding purposes
  • How the topic relates to diagnostic cardiac catheterization and coronary imaging procedures

Who Should Read This

  • Facility coders
  • Inpatient procedure coders
  • Radiology coding staff
  • Health information management professionals

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