ICD-10 Code I67.0 – Dissection of cerebral arteries, nonruptured (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I67.0 – Dissection of cerebral arteries, nonruptured
What it is
I67.0 identifies a nonruptured dissection of a cerebral artery, meaning a tear in the artery wall within the brain without bleeding. You should use it when documentation specifies a cerebral arterial dissection and does not mention rupture.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see sudden neurologic symptoms, headache, neck pain, or focal deficits, with imaging confirming arterial dissection. The record should clearly state the cerebral artery is dissected and nonruptured.
When to use this code
Use I67.0 when the provider documents a dissection involving a cerebral artery and specifically notes it is nonruptured. This code fits imaging-confirmed or clinically diagnosed cases where the artery wall injury is intracranial and not associated with hemorrhage. Check documentation if the site is unclear.
Do not use for
Do not use this code for ruptured dissections, hemorrhagic stroke, or dissections limited to noncerebral vessels. If the chart only says “arterial dissection” without a cerebral location, check documentation before assigning I67.0.
Coding tip
Verify both the artery location and the absence of rupture in the provider note or imaging report before coding.