I65.2 – Occlusion and stenosis of carotid artery

ICD-10-CM 2027 diagnosis code · Cerebrovascular diseases

Non-billable header

ICD-10-CM code I65.2
Code
I65.2 (claims format: I652)
Description
Occlusion and stenosis of carotid artery
Billable
No – use a more specific code below
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
I65

Billable codes under I65.2

I65.2 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

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

I65 – Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction

Includes:
  • embolism of precerebral artery
  • narrowing of precerebral artery
  • obstruction (complete) (partial) of precerebral artery
  • thrombosis of precerebral artery
Excludes1 (not coded here):
  • insufficiency, NOS, of precerebral artery (G45.-)
  • insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2)

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 I65.2

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

Related codes in I65

Frequently asked questions

What is ICD-10 code I65.2?

I65.2 is the ICD-10-CM code for occlusion and stenosis of carotid artery, in the block I60-I69 (Cerebrovascular diseases).

Is I65.2 a billable code?

No. I65.2 is a header code with more specific child codes; report one of the billable codes listed above.

What category does I65.2 belong to?

It belongs to category I65 – Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction.

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.