ICD-10 Code G46.7 – Other lacunar syndromes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G46.7 – Other lacunar syndromes
What it is
G46.7 identifies other lacunar syndromes, which are small-vessel ischemic stroke syndromes affecting deep brain structures. Use it when the documented presentation fits a lacunar syndrome but does not match a more specific code.
Clinical signs
Clinical features vary; refer to documentation. Lacunar syndromes commonly involve pure motor or sensory deficits, ataxic weakness, dysarthria-clumsy hand, or similar focal neurologic findings without cortical signs.
When to use this code
Use this code when the provider documents an “other” lacunar syndrome or a lacunar stroke syndrome not otherwise classified. It may apply to a confirmed ischemic event with a clinical lacunar pattern and no better-specific ICD-10-CM option. Check documentation for the exact syndrome name and whether the event is acute or a past history.
Do not use for
Do not use this code for transient ischemic attack, hemorrhagic stroke, or nonspecific cerebrovascular symptoms without a documented lacunar syndrome. If the chart names a more specific lacunar syndrome, code that instead.
Coding tip
Code from the provider’s documented syndrome name and avoid assuming lacunar subtype when the record is vague.