Abnormal Single Motor Unit Action Potential C5539802
An abnormal electrical pattern detected in single muscle fibers during electromyography testing. This finding may indicate neuromuscular disease and typically warrants further neurological evaluation.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy