ICD-10 Code I69.9 – Sequelae of unspecified cerebrovascular diseases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.9 – Sequelae of unspecified cerebrovascular diseases
What it is
This code identifies lasting effects from a prior cerebrovascular disease when the original event is not further specified. Use it for residual neurologic problems that remain after the acute phase has passed.
Clinical signs
Clinical features vary; refer to documentation. Common sequelae may include weakness, speech difficulty, gait problems, or other persistent neurologic deficits after a past stroke or similar vascular brain event.
When to use this code
Use I69.9 when the chart documents a residual condition due to an old cerebrovascular disease, but does not identify the original type. The current visit should focus on the lingering deficit, not the acute event. Confirm that the provider links the deficit to the prior cerebrovascular disease.
Do not use for
Do not use this code for an acute stroke, transient ischemic attack, or a history of cerebrovascular disease without sequelae. Check documentation if the residual deficit is not clearly tied to a prior cerebrovascular event.
Coding tip
Code the residual manifestation first, and use I69.9 only when the provider documents a sequela from an unspecified cerebrovascular disease.