I67.1 – Cerebral aneurysm, nonruptured

ICD-10-CM 2027 diagnosis code · Cerebrovascular diseases

Billable code

ICD-10-CM code I67.1

Code: I67.1 (claims format: I671)
Description: Cerebral aneurysm, nonruptured
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I60-I69 Cerebrovascular diseases
Parent codes: I67

Notes for I67.1

Applicable to:

Cerebral aneurysm NOS
Cerebral arteriovenous fistula, acquired
Internal carotid artery aneurysm, intracranial portion
Internal carotid artery aneurysm, NOS

Excludes1 (not coded here):

congenital cerebral aneurysm, nonruptured (Q28.-)
ruptured cerebral aneurysm (I60.7)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

I67 – Other cerebrovascular diseases

Excludes1 (not coded here):

Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)

Excludes2 (not included here):

sequelae of the listed conditions (I69.8)

Block I60-I69

Excludes1 (not coded here):

traumatic intracranial hemorrhage (S06.-)

Use additional code:

code to identify presence of:
alcohol abuse and dependence (F10.-)
exposure to environmental tobacco smoke (Z77.22)
history of tobacco dependence (Z87.891)
hypertension (I10-I1A)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Index terms for I67.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in I67

I67.0 – Dissection of cerebral arteries, nonrupturedBillable
I67.2 – Cerebral atherosclerosisBillable
I67.3 – Progressive vascular leukoencephalopathyBillable
I67.4 – Hypertensive encephalopathyBillable
I67.5 – Moyamoya diseaseBillable
I67.6 – Nonpyogenic thrombosis of intracranial venous systemBillable
I67.7 – Cerebral arteritis, not elsewhere classifiedBillable
I67.8 – Other specified cerebrovascular diseasesHeader
I67.9 – Cerebrovascular disease, unspecifiedBillable

Frequently asked questions

What is ICD-10 code I67.1?

I67.1 is the ICD-10-CM code for cerebral aneurysm, nonruptured, in the block I60-I69 (Cerebrovascular diseases).

Is I67.1 a billable code?

Yes. I67.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I67.1 belong to?

It belongs to category I67 – Other cerebrovascular diseases.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.