ICD-10 Code I69.918 – Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.918 – Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease
What it is
This code identifies lingering cognitive problems after a cerebrovascular disease when the exact event is not specified. Use it for post-stroke or other vascular brain injury effects that involve thinking or memory, but where documentation does not name a more specific condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include memory loss, slowed thinking, poor attention, or difficulty with planning and judgment after a vascular neurologic event.
When to use this code
Use this code when the provider documents cognitive symptoms as a residual effect of unspecified cerebrovascular disease and does not identify a more precise diagnosis. It is appropriate for follow-up visits addressing ongoing cognitive changes after a prior vascular brain event. Code only when the record clearly links the cognitive issue to that cerebrovascular condition.
Do not use for
Do not use this code for acute stroke, transient ischemic attack, or cognitive decline without a documented cerebrovascular cause. Check documentation if the record supports a different post-stroke deficit or a more specific residual code.
Coding tip
Link the cognitive symptom to the prior cerebrovascular disease in the note before assigning this residual code.