Facial myokymia
ICD-10 G51.4 is a billable code used to indicate a diagnosis of facial myokymia.
Facial myokymia is characterized by involuntary, fine, undulating muscle contractions of the facial muscles, often resulting in a quivering appearance. This condition is typically associated with dysfunction of the facial nerve (cranial nerve VII) and can occur in various clinical contexts, including multiple sclerosis, facial nerve injury, or as a side effect of certain medications. The myokymic movements are usually localized to the facial region and can be exacerbated by stress or fatigue. Diagnosis is primarily clinical, based on the observation of the characteristic muscle twitching, and may be supported by electromyography (EMG) studies to assess the electrical activity of the facial muscles. Treatment focuses on addressing the underlying cause, which may involve medication adjustments or physical therapy. In some cases, facial myokymia may resolve spontaneously, but persistent cases may require further intervention.
Detailed neurological examination findings, including muscle strength and reflexes, and any relevant imaging or EMG results.
Patients presenting with facial twitching, history of neurological disorders, or post-surgical facial nerve complications.
Consideration of comorbid conditions that may affect facial nerve function.
Thorough history of facial symptoms, examination of cranial nerves, and any surgical history related to the head and neck.
Patients with facial nerve injury post-surgery or trauma, or those with idiopathic facial myokymia.
Documentation should include any interventions or treatments provided for facial nerve dysfunction.
Used to confirm the diagnosis of facial myokymia through electrical activity assessment.
EMG report detailing findings of myokymic discharges.
Neurologists should ensure that the EMG findings correlate with clinical symptoms.
Facial myokymia is often associated with neurological conditions such as multiple sclerosis, but it can also occur due to facial nerve injury or as a side effect of certain medications.
