AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2016 Issue 4; ICD-10-CM NEW/REVISED CODES
Multifocal Motor Neuropathy
Code G61.82, Multifocal motor neuropathy, has been created. Multifocal motor neuropathy (MMN) is a commonly recognized progressive muscle disorder that occurs when there is a conduction block that prevents the transmission of an impulse completely down the nerve. The exact cause of the conduction block is not known but MMN is thought to be an autoimmune disorder. Motor nerve dysfunction causes muscle weakness, foot or wrist drop, and twitching that usually starts in a single limb. The condition is rare, affecting 1 of 100,000 individuals and occurs most often in men between the ages of 40-60 years...
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Article Overview
This article covers multifocal motor neuropathy as a rare neurologic condition, including its basic clinical features, how it may be distinguished from other motor disorders, and the types of diagnostic testing often discussed in connection with the condition. It also notes the creation of a diagnosis code and briefly summarizes the general treatment approach and why the topic matters for coding and documentation review.
Why This Topic Matters
The topic is relevant to clinicians, coders, and documentation specialists because multifocal motor neuropathy can be confused with other neurologic disorders and is associated with a specific diagnosis code update.
What You Will Learn
- How multifocal motor neuropathy is described clinically
- Why the condition can be confused with other neurologic disorders
- What general testing is discussed in relation to diagnosis
- What broad treatment approach is mentioned in the article
- Why the coding update is relevant to documentation and review
Who Should Read This
- Medical coders
- Coding educators
- Clinical documentation specialists
- Neurology clinicians
- Revenue cycle professionals
Codes Discussed
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