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Cardiac Catheterization Coding Guide

Jul 20, 2025

Overview

This lecture explains the basics of coding cardiac catheterizations, highlights key considerations when reviewing reports, and provides guidance on selecting the correct procedural codes and add-ons.

Understanding Cardiac Catheterization (Cath)

  • Cardiac catheterization is a diagnostic procedure using imaging to evaluate heart function and detect problems.
  • Dye is injected via a catheter to visualize the heart and blood vessels.
  • Traditionally, coding required separate codes for catheterization, injection, and imaging.

Coding Process & Key Considerations

  • In 2011, codes were updated to bundle injections and imaging for non-congenital caths.
  • First, determine if the cath is for a congenital (present at birth) condition or not.
  • Identify which side of the heart was catheterized: right, left, both, or vessels only.
  • Check for any add-on procedures that can be coded in addition.

Common Cardiac Cath CPT Codes

  • Right heart cath only: 93451.
  • Left heart cath with coronary arteries: 93454; with bypass grafts: 93455.
  • Combined right and left heart cath: 93460 (or similar, verify bundle specifics).
  • Non-congenital cath codes (e.g., 93456, 93457) include injections and imaging.
  • For native vessels: 93454; for native and bypass grafts: 93455.
  • Congenital heart cath codes: 93530–93533; injections and imaging are billed separately.
  • Add-on codes: right ventriculography (93566), aortic imaging (93567), pulmonary angiography (93568).

Add-On Procedures & Codes

  • Transseptal approach (through heart septum): 93462.
  • Pharmacologic agent administration: 93463.
  • Physiologic exercise study during cath: 93464.
  • Intravascular ultrasound in coronary vessels: 92978.
  • Transcatheter intracoronary stent placement: 92980.
  • Fractional flow reserve (FFR), initial vessel: 93571; additional vessels: 93572.

Case Examples Summary

  • Left heart cath with stent and IVUS on LAD: use 93459 (cath), 92980 (stent), 92978 (IVUS).
  • Add FFR code 93571 (and 93572 for additional vessels) if performed.

Key Terms & Definitions

  • Cardiac catheterization — Diagnostic imaging procedure using a catheter and dye to visualize the heart and vessels.
  • Congenital — Condition present at birth.
  • CPT codes — Standardized codes for reporting medical procedures.
  • Intravascular ultrasound (IVUS) — Imaging from inside the blood vessel using ultrasound.
  • Fractional flow reserve (FFR) — Measurement to assess blood flow and vessel blockage.
  • Stent — Small tube placed inside a vessel to keep it open.
  • Add-on code — Extra code for additional procedures performed during the main procedure.

Action Items / Next Steps

  • Review CPT code descriptions for cardiac catheterization and related add-on codes.
  • Practice abstracting key details from sample cath reports: congenital vs. non-congenital, side(s) catheterized, add-on procedures.
  • Watch suggested patient-oriented YouTube videos on the cardiac cath procedure for visual understanding.