ICD-10 Code I69.344 – Monoplegia of lower limb following cerebral infarction affecting left non-dominant side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.344 – Monoplegia of lower limb following cerebral infarction affecting left non-dominant side
What it is
This code identifies monoplegia of the left lower limb that remains after a cerebral infarction. It applies when the weakness is a late effect of the stroke, not an acute event.
Clinical signs
Typical findings include marked weakness or paralysis limited to one leg, often with impaired gait, balance, or need for assistive devices. Clinical features vary; refer to documentation for laterality and dominant-side status.
When to use this code
Use I69.344 when the record clearly links the lower-limb monoplegia to a prior cerebral infarction and specifies the left non-dominant side. It is appropriate for sequelae visits, rehabilitation follow-up, or ongoing neurologic deficit documentation. Check documentation if the stroke side or dominance is unclear.
Do not use for
Do not use this code for acute stroke, unspecified hemiplegia, or weakness without a documented post-infarction cause. Do not assign it when the affected side or dominance is not confirmed.
Coding tip
Code the residual deficit first and verify that the chart states both the cerebral infarction history and the left non-dominant side.