ICD-10 Code I69.851 – Hemiplegia and hemiparesis following other cerebrovascular disease affecting right dominant side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.851 – Hemiplegia and hemiparesis following other cerebrovascular disease affecting right dominant side
What it is
This code identifies persistent right-sided weakness or paralysis affecting the dominant side after a cerebrovascular disease other than stroke. It describes a late effect, not the acute event itself.
Clinical signs
Typical findings include reduced strength, impaired coordination, and limited use of the right arm, right leg, or both. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record documents hemiplegia or hemiparesis as a residual condition after a prior cerebrovascular disease and specifies the right dominant side. You should link it to the ongoing neurologic deficit, not the original cerebrovascular diagnosis. Check documentation if laterality, dominance, or cause is unclear.
Do not use for
Do not use it for acute stroke, transient ischemic attack, or weakness without a documented cerebrovascular cause. Do not assign it if the side or dominance is not confirmed.
Coding tip
Verify that the provider documents both the residual deficit and the prior cerebrovascular disease before assigning I69.851.