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Hemichorea or hemiballismus

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Ballism (“ballismós” meaning ‘jumping around’ in Ancient Greek) refers to violent, irregular flinging movements of the limbs primarily due to contractions of the proximal muscles. Hemiballism refers to movements involving upper and lower extremities on the same side with or without involvement of the face. Hemichorea refers to hemibody chorea with brief non repetitive jerks affecting arm and leg on one side with or without involvement of the face.

sections/codes in this section (8A01.2-8A01.2)

• Hemichorea  (8A01.20)
• Ballism  (8A01.21)
• Hemiballism  (8A01.22)
• Other specified hemichorea or hemiballismus  (8A01.2Y)
• Hemichorea or hemiballismus, unspecified  (8A01.2Z)

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