AHA Coding Clinic® for ICD-9 - 2011 Issue 4; VOLUMES 1 & 2 NEW/REVISED CODES

Corticobasal Degeneration

Effective October 1, 2011, a new code has been created to identify corticobasal degeneration and distinguish it from other neurodegenerative diseases identified by other ICD-9-CM codes. Corticobasal degeneration (331.6) is a neurodegenerative disease involving cognitive impairment and movement disorder. The cognitive impairment resembles that associated with the frontotemporal dementias, especially loss of executive function, language impairment, and visuospatial and number processing. Most often the movement disorder presents asymmetrically and may include myoclonus, dystonia or akinetic-rigid syndrome. Other manifestations include alien limb syndrome, apraxia and cortical sensory loss. 331 Other cerebral degenerations New code 331.6 Corticobasal degeneration ...

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