A common confusing coding dilemma concerns the diagnostic investigation of the swallowing function with a few different methods. The two codes that cause the most confusion are 70371 and 74230 and knowing when to use them will make the difference between a paid medical billing claim and a denial or delayed claim. Here is a breakdown of the basics for the two codes : 70371: Code 70371 (Complex dynamic pharyngeal and speech evaluation by cineradiography or video recording) describes a radiologic study using cineradiography or video recording for pharyngeal and speech evaluation. Typically, although not necessarily, a speech pathologist is present, and the patient repeats sounds to allow for evaluation …