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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Article Overview
This short coding article covers an ICD-9-CM update effective October 1, 2011, focused on corticobasal degeneration and its distinction from other neurodegenerative conditions. It is relevant to coders, auditors, and clinical documentation staff who need to track diagnosis code changes and understand the general clinical context behind the update.
Why This Topic Matters
Diagnosis code updates can affect documentation review, claim accuracy, and data reporting. This article helps readers identify the new diagnosis category and understand the kind of clinical presentation associated with the condition without needing the full premium text.
What You Will Learn
- The scope of the ICD-9-CM update described in the article
- How the article places the condition within a broader neurologic diagnosis category
- The general clinical context associated with the updated diagnosis entry
- The effective date associated with the coding change
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation specialists
- Revenue cycle staff
- Health information management professionals
Codes Discussed
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