ICD-10 Code I69.998 – Other sequelae following unspecified cerebrovascular disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I69.998 – Other sequelae following unspecified cerebrovascular disease
What it is
This code describes residual effects from a prior cerebrovascular disease when the original event is unspecified and the remaining problem does not fit a more specific sequela code. It captures late effects, not an active stroke.
Clinical signs
Clinical features vary; refer to documentation. You may see persistent weakness, speech difficulty, cognitive changes, or other lasting neurologic deficits after a past cerebrovascular event.
When to use this code
Use this code when the record clearly links the current deficit to a previous cerebrovascular disease and no more specific sequela code applies. It is appropriate for follow-up visits documenting ongoing residual impairment after the acute phase has ended.
Do not use it for acute stroke symptoms without documentation of sequelae. If the type of cerebrovascular disease or the residual condition is specified, code that more specific diagnosis instead.
Do not use for
Do not use for an acute cerebrovascular event, transient symptoms, or a condition not documented as a sequela. Check documentation if the prior cerebrovascular disease is unclear.
Coding tip
Link the current deficit to the prior cerebrovascular disease in the provider note before assigning I69.998.