Cerebral aneurysm, nonruptured

This code signifies the presence of an unruptured cerebral aneurysm, which is an abnormal, localized ballooning or bulging of a blood vessel in the brain. This condition can be congenital or acquired and may remain asymptomatic for extended periods.

Apply this code when documentation clearly indicates a diagnosis of a cerebral aneurysm that has not ruptured. This is appropriate for patients undergoing diagnostic workup, monitoring, or prophylactic treatment for an intact intracranial aneurysm. Supporting documentation includes imaging reports (e.g., CTA, MRA, cerebral angiography) confirming the presence of an unruptured aneurysm.

• Always confirm the aneurysm's status as "nonruptured" or "intact" in the physician's documentation.
• Do not use this code if the aneurysm has ruptured; instead, refer to codes for subarachnoid hemorrhage.
• Consider additional codes for any associated conditions, such as hypertension or other cerebrovascular diseases.