ICD-10 Code I69.333 – Monoplegia of Upper Limb Following Cerebral Infarction Affecting Right Non-Dominant Side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.333 – Monoplegia of upper limb following cerebral infarction affecting right non-dominant side
What it is
This code identifies a paralysis or severe weakness limited to the right upper limb that remains after a cerebral infarction. It applies when the right side is documented as non-dominant.
Clinical signs
Common findings include marked loss of voluntary movement, reduced strength, and impaired arm function on the right. Clinical features vary; refer to documentation.
When to use this code
Use I69.333 when the record states monoplegia of the right upper limb as a late effect of prior cerebral infarction. The documentation should also identify the right side as non-dominant. Code it from the residual deficit, not the acute stroke event.
Do not use for
Do not use this code for acute stroke, transient weakness, or weakness from another cause. If laterality or dominance is unclear, check documentation.
Coding tip
Confirm both the residual monoplegia and the non-dominant right side in the chart before assigning this code.