Peroneal muscular atrophy

This code identifies Charcot-Marie-Tooth disease, a group of inherited neurological disorders characterized by progressive degeneration of peripheral nerves. It primarily affects the peroneal nerve, leading to muscle weakness and atrophy, particularly in the lower legs and feet. Patients typically experience foot drop, high-arched feet, and hammer toes.

Use this code for documented diagnoses of peroneal muscular atrophy, often referred to as Charcot-Marie-Tooth disease. This diagnosis is typically supported by neurological examination findings, nerve conduction studies, electromyography (EMG), and genetic testing results. It applies when the primary manifestation is the atrophy of muscles supplied by the peroneal nerve.

• Differentiate from other forms of muscular atrophy; this code is specific to peroneal involvement.
• Consider sequencing this code as the primary diagnosis when it is the main reason for the encounter.
• Ensure documentation clearly specifies "peroneal" muscular atrophy or Charcot-Marie-Tooth disease to support this specific code.