ICD-10 Code I68.8 – Other cerebrovascular disorders in diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I68.8 – Other cerebrovascular disorders in diseases classified elsewhere
What it is
I68.8 identifies cerebrovascular disorders that occur as a manifestation of another disease, but do not fit a more specific code. Use it when the brain vessel problem is secondary to an underlying condition.
Clinical signs
Clinical features vary; refer to documentation. Findings may reflect cerebrovascular involvement linked to another diagnosed disease, with symptoms or imaging evidence supporting a secondary vascular disorder.
When to use this code
Use this code when the record states a cerebrovascular disorder is due to another condition and no more specific I68 category applies. Confirm that the underlying disease is documented and that the provider links the vascular disorder to it. If the note is vague, check documentation before coding.
Do not use for
Do not use this code for primary cerebrovascular diseases or when a more specific code better describes the condition. Avoid it if the causal relationship to another disease is not documented.
Coding tip
Always code the underlying disease first when the record supports a secondary cerebrovascular disorder.