Question: I'm confused about when I should use wall motion code 78478. What should I look for in my physician's documentation? Answer: You should report +78478 (Myocardial perfusion study with wall motion, qualitative or quantitative study [list separately in addition to code for primary procedure]) when your cardiologist evaluates the motion of the left ventricle. Code 78478 represents the actual assessment of watching the ventricle contract and relax.
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Your physician must include words like "wall motion," "hypokinesis," "dyskinesia" and "akinesia." All of these terms will demonstrate wall motion.
Remember: You should use this add-on code with myocardial perfusion imaging codes (78460-78465).
Best bet: If you encounter denials for wall motion claims (78478), point out that the study helps physicians distinguish between perfusion defects and other soft-tissue artifacts, such as diaphragmatic attenuation or breast attenuation.