ICD-10 Code I69.831 – Monoplegia of Upper Limb Following Other Cerebrovascular Disease Affecting Right Dominant Side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.831 – Monoplegia of upper limb following other cerebrovascular disease affecting right dominant side
What it is
This code identifies paralysis or severe weakness limited to one upper limb after a prior cerebrovascular disease, affecting the right dominant side. Use it when the deficit is a lasting effect, not an acute stroke.
Clinical signs
Typical findings include marked loss of voluntary movement in the right arm, reduced strength, and impaired functional use. Clinical features vary; refer to documentation for dominance, laterality, and whether the deficit is residual.
When to use this code
Use I69.831 when the record links a current right upper-limb monoplegia to a previous cerebrovascular disease. The documentation should show that the patient has a residual deficit after the event, not a new neurologic episode. Confirm dominant side and that the condition affects only one upper limb.
Do not use for
Do not use this code for acute stroke, transient ischemic attack, or generalized hemiplegia. Check documentation if the weakness is bilateral, affects the lower limb, or is not clearly tied to prior cerebrovascular disease.
Coding tip
Verify the residual deficit, laterality, and dominant side in the note before assigning this code.