Abnormal involuntary movements

This code signifies the presence of uncontrolled, unintentional muscle movements that are not voluntary. These movements can manifest in various forms, such as tremors, tics, dystonia, chorea, or myoclonus, and are often indicative of an underlying neurological disorder.

Apply this code when documentation clearly describes involuntary movements without a more specific diagnosis yet established. It is appropriate for initial evaluations or when the precise etiology of the movement disorder is still under investigation. Supporting documentation should detail the type and characteristics of the abnormal movements observed.

• Do not use this code if a more specific diagnosis for the involuntary movement (e.g., Parkinson's disease, Huntington's chorea) is documented.
• Consider sequencing this code as a secondary diagnosis if the primary reason for the encounter is a related but distinct condition.
• Ensure the medical record explicitly states "abnormal involuntary movements" or describes symptoms that unequivocally fall under this umbrella.