G25.3
Myoclonus
Clinical Classification Guidelines
Use Additional Code
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Inclusion Terms
- Drug-induced myoclonus
- Palatal myoclonus
Excludes Type 1
- facial myokymia (G51.4)
- myoclonic epilepsy (G40.-)
Medical Intelligence & Overview
Myoclonus is a neurological condition characterized by sudden, involuntary muscle jerks or twitches. These swift movements can affect one part of the body or multiple areas, often occurring unpredictably. Myoclonus can be a standalone disorder or a symptom of an underlying condition. It is categorized under ICD-10 code G25.3 and includes specific forms such as drug-induced myoclonus and palatal myoclonus.
Causes & Symptoms
Clinical Causes: Use of certain medications or drugs, such as antidepressants or opioids, which can induce myoclonus Metabolic disturbances like uremia, hypoglycemia, or liver failure Neurological disorders including epilepsy, Parkinson’s disease, or multiple sclerosis Certain genetic conditions that affect nerve and muscle function Infections impacting the nervous system, such as encephalitis or HIV Head injury or traumatic brain injury Palatal myoclonus, which involves rhythmic movements of the palate, often linked to brainstem or cerebellar lesions
Key Symptoms: Brief, shock-like muscle jerks or twitches in one or more muscles Involuntary muscle movements that may occur during wakefulness or sleep Repeated or rhythmic jerking movements, especially in palatal myoclonus Potential sensation of muscle stiffness or twitching without control In cases associated with neurological conditions, additional symptoms such as tremors or coordination issues
Diagnostic & Treatment
Diagnosis Path: Diagnosis of myoclonus involves a detailed medical history, physical and neurological examinations, and may include diagnostic tests such as neuroimaging (MRI or CT scans), electroencephalogram (EEG), and laboratory tests to identify underlying causes or associated conditions. Clinicians assess the pattern, frequency, and triggers of muscle jerks to distinguish between different types of myoclonus.
Treatment Protocols: Managing myoclonus depends on its underlying cause and severity. Treatment options may include:
Clinical Advice & FAQs
Billing Guidance
Is G25.3 a billable ICD-10 code?
Yes, G25.3 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report G25.3?
Clinical documentation must specify the nature of Myoclonus and any associated comorbidities for accurate reporting.
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