ICD-10 Code I69.94 – Monoplegia of lower limb following unspecified cerebrovascular disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.94 – Monoplegia of lower limb following unspecified cerebrovascular disease
What it is
I69.94 identifies one-sided paralysis or severe weakness affecting a lower limb as a late effect of an unspecified cerebrovascular disease. Use it when the deficit remains after the stroke or other brain vascular event has occurred.
Clinical signs
Typical findings include persistent weakness or paralysis in one leg, reduced motor control, and functional limitation on the affected side. Clinical features vary; refer to documentation for the exact neurologic deficit and laterality.
When to use this code
Use this code when the record states monoplegia of a lower limb due to a past cerebrovascular disease and the acute event is no longer being treated. You should code the residual deficit, not the old stroke episode, when the provider documents it as a sequela. Check documentation if the cause is unclear or if the weakness is from another neurologic condition.
Do not use for
Do not use it for acute stroke, transient ischemic attack, or generalized weakness without a documented cerebrovascular cause. Do not use if the lower-limb deficit is better explained by injury, peripheral nerve disease, or another non-cerebrovascular condition.
Coding tip
Look for wording such as “late effect,” “residual,” or “due to prior CVA” before assigning I69.94.