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chiari malformation

Wikipedia Summary

In neurology, the Chiari malformation ( kee-AR-ee; CM) is a structural defect in the cerebellum, characterized by a downward displacement of one or both cerebellar tonsils through the foramen magnum (the opening at the base of the skull). CMs can cause headaches, difficulty swallowing, vomiting, dizziness, neck pain, unsteady gait, poor hand coordination, numbness and tingling of the hands and feet, and speech problems. Less often, people may experience ringing or buzzing in the ears, weakness, slow heart rhythm, or fast heart rhythm, curvature of the spine (scoliosis) related to spinal cord impairment, abnormal breathing, such as central sleep apnea, characterized by periods of breathing cessation during sleep, and, in severe cases, paralysis...
Related Codes (5)
Code
Description
Billable
Details
Q07.0Arnold-Chiari syndrome
Type 1 Excludes (2)
Q07.00Arnold-Chiari syndrome without spina bifida or hydrocephalus
Q07.01Arnold-Chiari syndrome with spina bifida
Q07.02Arnold-Chiari syndrome with hydrocephalus
Q07.03Arnold-Chiari syndrome with spina bifida and hydrocephalus

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