I63

⚠ Non-billable (Header)

Cerebral infarction

Diseases of the circulatory system (I00-I99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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ℹ️ Includes

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

❌ Excludes1

direct

These codes are mutually exclusive. Never code them together.

• neonatal cerebral infarction (P91.82-)

⚠️ Excludes2

direct

Both codes can exist if both conditions are documented.

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

Child Codes (9)

I63.0Cerebral infarction due to thrombosis of precerebral arteriesHeader I63.1Cerebral infarction due to embolism of precerebral arteriesHeader I63.2Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteriesHeader I63.3Cerebral infarction due to thrombosis of cerebral arteriesHeader I63.4Cerebral infarction due to embolism of cerebral arteriesHeader I63.5Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteriesHeader I63.6Cerebral infarction due to cerebral venous thrombosis, nonpyogenic✓ Billable I63.8Other cerebral infarctionHeader I63.9Cerebral infarction, unspecified✓ Billable

Clinical Description

ICD-10-CM code I63 represents cerebral infarction. This code falls under the Diseases of the circulatory system (I00-I99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

Frequently Asked Questions

What is ICD-10 code I63?

ICD-10-CM code I63 is "Cerebral infarction". It belongs to the category: Diseases of the circulatory system (I00-I99).

Is I63 a billable ICD-10 code?

No, I63 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with I63?

I63 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can I63 be coded with other codes?

I63 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

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Code Information

CodeI63

BillableNo — Header code

CategoryDiseases of the circulatory system (I00-I99)

Excludes11 rule(s)

Excludes22 note(s)

Child codes9

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)