I63.09 – Cerebral infarction due to thrombosis of other precerebral artery

ICD-10-CM 2027 diagnosis code · Cerebrovascular diseases

Billable code

ICD-10-CM code I63.09

Code: I63.09 (claims format: I6309)
Description: Cerebral infarction due to thrombosis of other precerebral artery
Short description: Cerebral infarction due to thrombosis of precerebral artery
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: I63 › I63.0

Notes inherited from parent codes

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

I63 – Cerebral infarction

Includes:

occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction

Excludes1 (not coded here):

neonatal cerebral infarction (P91.82-)

Excludes2 (not included here):

chronic, without residual deficits (sequelae) (Z86.73)
sequelae of cerebral infarction (I69.3-)

Use additional code:

code, if applicable, to identify status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)

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 I63.09

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

Related codes in I63.0

Frequently asked questions

What is ICD-10 code I63.09?

I63.09 is the ICD-10-CM code for cerebral infarction due to thrombosis of other precerebral artery, in the block I60-I69 (Cerebrovascular diseases).

Is I63.09 a billable code?

Yes. I63.09 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I63.09 belong to?

It belongs to category I63 – 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.