ICD-10 Code I67.1 – Cerebral aneurysm, nonruptured (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I67.1 – Cerebral aneurysm, nonruptured
What it is
I67.1 identifies a cerebral aneurysm that has not ruptured. It refers to a weakened, bulging area in a brain artery that is documented as unbroken.
Clinical signs
Many nonruptured aneurysms cause no symptoms and are found on imaging. If symptoms are present, they may reflect mass effect or incidental discovery; clinical features vary, refer to documentation.
When to use this code
Use I67.1 when the provider documents a cerebral aneurysm that is intact, unruptured, or nonruptured. Code it from imaging, neurology, or neurosurgical documentation when the diagnosis is confirmed. If the record does not clearly state rupture status, check documentation before assigning the code.
Do not use for
Do not use this code for a ruptured cerebral aneurysm or subarachnoid hemorrhage. Also avoid it when the chart only notes a suspected aneurysm without confirmation.
Coding tip
Capture the rupture status exactly as documented; if it is unclear, query the provider.