Medical Coding Foreign Body | Diagnosis & Procedure Coding Explained In this video, we cover how to properly code foreign body cases using ICD-10-CM and CPT guidelines. Foreign body encounters are common in emergency, outpatient, and surgical settings, and they are also a frequent source of claim denials when coded incorrectly. You will learn: What qualifies as a foreign body in medical coding How to select the correct ICD-10-CM diagnosis codes When foreign body removal procedures are separately