Abnormal involuntary movements

Definition

Abnormal involuntary movements include abnormal head movements, tremor, cramp, spasm, fasciculation, and other abnormal involuntary movements

Exclusions

• Essential tremor or related tremors (8A04.1)
• Intention tremor (MB45.4)
• Movement disorders
• Stereotyped movement disorder (6A06)
• Tic disorders (8A05)

8 subordinate codes

• MB46.0Asterixis
• MB46.1Abnormal head movements
• MB46.2Athetosis
• MB46.3Drop attack
• MB46.4Titubation
• MB46.5Shuddering
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Symptoms or signs involving the nervous system

• MB40Sensation disturbance
• MB41Disturbances of smell or taste
• MB42Phonophobia
• MB43Dyssomnia
• MB44Abnormalities of gait or mobility
• MB45Lack of coordination
• MB47Abnormality of tonus or reflex
• MB48Dizziness or giddiness