History of Brain Aneurysm ICD-10-CM Codes

What history of brain aneurysm ICD codes can I use?

When documenting a history of a brain aneurysm, several ICD-10-CM diagnosis codes may apply depending on the patient's clinical status, whether the aneurysm is current, previously treated, ruptured, or related to family history. The most relevant ICD-10 codes include:

Z86.79 – Personal history of other diseases of the circulatory system

Used to indicate a personal history of brain aneurysm or other circulatory system diseases that are no longer active. Common in follow-up care for nonruptured acquired cerebral aneurysm or ruptured cerebral aneurysm previously treated.

Z82.49 – Family history of ischemic heart disease and other diseases of the circulatory system

This code documents a family history of cerebral aneurysms, ischemic heart disease, or other circulatory conditions. It helps assess genetic risk for stroke, aneurysm, or cerebral hemorrhage.

Z86.73 – Personal history of TIA and cerebral infarction without residual deficits

Use this code for patients with a resolved stroke or transient ischemic attack (TIA) with no lasting deficits. It’s important in patients with prior cerebral infarction potentially related to an aneurysm.

I67.1 – Cerebral aneurysm, nonruptured

Used when a nonruptured cerebral aneurysm is currently present in a patient. Its application include cerebral arteriovenous fistula (acquired), internal carotid artery aneurysm, (intracranial portion) detected through imaging.

I60.7 – Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery

This code captures ruptured cerebral aneurysms resulting in subarachnoid hemorrhage without a specified artery. It is commonly linked to hemorrhagic stroke and emergency neurovascular care.

Are these history of brain aneurysm ICD codes billable?

Yes. All codes listed above are billable ICD-10-CM diagnosis codes.

Clinical information

A brain aneurysm is a bulge or dilation in a blood vessel of the brain, typically located in the cerebral artery or intracranial portion of the internal carotid artery, basilar artery, or vertebral artery. Many cases involve nonruptured acquired cerebral aneurysms, though some progress to ruptured cerebral aneurysms, which can cause a subarachnoid hemorrhage, cerebral infarction, or hemorrhagic stroke.

Common considerations for coding:

• If the patient has a resolved aneurysm with no current symptoms, use Z86.79 to reflect the history.
• If there is a family history of cerebral aneurysms, Z82.49 is appropriate.
• A current but unruptured aneurysm of the intracranial portion of the left or right internal carotid artery should be coded as I67.1.
• For a ruptured acquired cerebral aneurysm, use I60.7.
• If the patient has experienced a prior stroke or TIA linked to an aneurysm, use Z86.73.

Synonyms include:

• History of cerebral aneurysm
• History of cerebral hemorrhage
• History of nontraumatic ruptured cerebral aneurysm
• History of occlusion of cerebral artery
• History of occlusion of cerebral artery without cerebral infarction
• Family history of cerebral artery occlusion

Other ICD-10 codes commonly used for brain aneurysm

• I72.0: Aneurysm of carotid artery
• Q28.2: Arteriovenous malformation of cerebral vessels