Pure motor lacunar syndrome
ICD-10 G46.5 is a billable code used to indicate a diagnosis of pure motor lacunar syndrome.
Pure motor lacunar syndrome is a subtype of lacunar stroke characterized by the presence of pure motor deficits without sensory involvement. It typically arises from small vessel disease, often due to chronic hypertension or diabetes, leading to ischemic lesions in the deep structures of the brain, such as the internal capsule. Patients may present with sudden onset weakness, usually affecting one side of the body, and may experience hemiparesis or hemiplegia. The condition is often transient, with symptoms that may resolve within a few days to weeks, but it can also lead to long-term disability. The diagnosis is primarily clinical, supported by neuroimaging techniques like MRI or CT scans that reveal lacunar infarcts. Understanding the risk factors, such as hypertension, hyperlipidemia, and smoking, is crucial for prevention strategies aimed at reducing the incidence of transient ischemic attacks (TIAs) and strokes. Effective management includes controlling vascular risk factors and rehabilitation to improve functional outcomes.
Detailed neurological examination findings, imaging results, and risk factor assessments.
Patients presenting with sudden weakness, history of hypertension, or previous TIAs.
Ensure clear documentation of motor deficits and exclusion of sensory involvement.
Comprehensive patient history, risk factor management, and follow-up notes.
Patients with risk factors for stroke presenting with transient weakness or numbness.
Document lifestyle modifications and medication adherence for stroke prevention.
Used for follow-up visits after diagnosis of G46.5.
Document history, examination, and medical decision-making.
Neurologists should focus on neurological assessments and treatment plans.
Common symptoms include sudden weakness on one side of the body, typically affecting the arm and leg, without sensory loss. Patients may also experience difficulty with coordination and balance.
