AHA Coding Clinic® for ICD-9 - 2011 Issue 4; VOLUMES 1 & 2 NEW/REVISED CODES
Lambert-Eaton Syndrome
Effective October 1, 2011, codes 358.30, Lambert-Eaton syndrome, unspecified; 358.31, Lambert-Eaton syndrome in neoplastic disease; and 358.39, Lambert-Eaton syndrome in other diseases classified elsewhere, were created for Lambert-Eaton syndrome. Lambert-Eaton syndrome (also known as Lambert-Eaton myasthenic syndrome) is an autoimmune disorder that occurs when there is a disruption of electrical impulse communication between the nerve and muscle cells. The disruption is associated with antibodies that prevent the release of the neurotransmitter acetylcholine from nerve endings joined to muscles. The result is muscle weakness, usually of the pelvis, hip, thigh, and arms, a tingling sensation in the...
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Article Overview
This article explains the background of Lambert-Eaton syndrome and describes a coding update that added a new ICD-9-CM subcategory for the condition effective October 1, 2011. It is relevant to coders, billers, and clinicians who need to understand how the diagnosis is represented in coding references and how the topic is discussed in relation to associated disease categories.
Why This Topic Matters
Lambert-Eaton syndrome is a condition that may be encountered in both neurology and oncology-related documentation. Understanding the coding update helps ensure diagnosis reporting aligns with the appropriate ICD-9-CM structure discussed in the article.
Article Sections
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Clinical overview and association with malignancy
Provides a general medical overview of the condition, including how it is described clinically and the broader disease contexts mentioned in the article.
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ICD-9-CM code update for Lambert-Eaton syndrome
Summarizes the coding update effective in 2011 and the new diagnosis category introduced for this condition.
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Coding example
Presents a brief question-and-answer format example related to diagnosis code assignment.
What You Will Learn
- The general clinical context in which Lambert-Eaton syndrome is discussed.
- That the article describes an ICD-9-CM coding update effective October 1, 2011.
- How the article frames the condition within a coding reference and example scenario.
- The relationship between the topic and associated disease categories mentioned in the source.
Who Should Read This
- Medical coders
- Coding auditors
- Billing staff
- Clinical documentation staff
- Healthcare professionals referencing diagnosis coding updates
Codes Discussed
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