Eli's Rehab Report

Question: Is there a specific diagnosis code for Isaac's syndrome?

Texas Subscriber

Answer: The two closest ICD-9 Codes to describe Isaac's syndrome are 358.8 (Other specified myoneural disorders) and 333.2 (Myoclonus), which describe the spontaneous movements and contractions that most Isaac's syndrome patients experience. Ask the treating physician to choose the more appropriate of these two codes on an individual-patient basis.
 
Isaac's syndrome (also known as neuromyotonia, Isaac's-Merten's syndrome, continuous muscle fiber activity syndrome, and quantal squander syndrome) is a rare neuromuscular disorder caused by continuous signaling of the end regions of peripheral nerve fibers that activate muscle fibers, or motor neurons.