I63
Non-Billable

Cerebral infarction

Non-Billable / Non-Specific Code

What is Cerebral infarction?

ICD-10-CM I63 is the diagnosis code for Cerebral infarction. This code falls under the section "Cerebrovascular diseases" within Chapter 9 — Diseases of the circulatory system (I00-I99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1
â„šī¸ Excludes2

Coding Guidelines for I63

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as I63. They are mutually exclusive:

  • neonatal cerebral infarction (P91.82-)

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in I63. If the patient has both, code each condition separately:

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

ICD-10-CM Code Hierarchy

Understanding where I63 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
I63.0Cerebral infarction due to thrombosis of precerebral arteriesNon-BillableI63.00Cerebral infarction due to thrombosis of unspecified precerebral arteryBillableI63.01Cerebral infarction due to thrombosis of vertebral arteryNon-BillableI63.011Cerebral infarction due to thrombosis of right vertebral arteryBillableI63.012Cerebral infarction due to thrombosis of left vertebral arteryBillableI63.013Cerebral infarction due to thrombosis of bilateral vertebral arteriesBillableI63.019Cerebral infarction due to thrombosis of unspecified vertebral arteryBillableI63.02Cerebral infarction due to thrombosis of basilar arteryBillableI63.03Cerebral infarction due to thrombosis of carotid arteryNon-BillableI63.031Cerebral infarction due to thrombosis of right carotid arteryBillableI63.032Cerebral infarction due to thrombosis of left carotid arteryBillableI63.033Cerebral infarction due to thrombosis of bilateral carotid arteriesBillableI63.039Cerebral infarction due to thrombosis of unspecified carotid arteryBillableI63.09Cerebral infarction due to thrombosis of other precerebral arteryBillableI63.1Cerebral infarction due to embolism of precerebral arteriesNon-BillableI63.10Cerebral infarction due to embolism of unspecified precerebral arteryBillableI63.11Cerebral infarction due to embolism of vertebral arteryNon-BillableI63.111Cerebral infarction due to embolism of right vertebral arteryBillableI63.112Cerebral infarction due to embolism of left vertebral arteryBillableI63.113Cerebral infarction due to embolism of bilateral vertebral arteriesBillableI63.119Cerebral infarction due to embolism of unspecified vertebral arteryBillableI63.12Cerebral infarction due to embolism of basilar arteryBillableI63.13Cerebral infarction due to embolism of carotid arteryNon-BillableI63.131Cerebral infarction due to embolism of right carotid arteryBillableI63.132Cerebral infarction due to embolism of left carotid arteryBillableI63.133Cerebral infarction due to embolism of bilateral carotid arteriesBillableI63.139Cerebral infarction due to embolism of unspecified carotid arteryBillableI63.19Cerebral infarction due to embolism of other precerebral arteryBillableI63.2Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteriesNon-BillableI63.20Cerebral infarction due to unspecified occlusion or stenosis of unspecified precerebral arteriesBillableI63.21Cerebral infarction due to unspecified occlusion or stenosis of vertebral arteriesNon-BillableI63.211Cerebral infarction due to unspecified occlusion or stenosis of right vertebral arteryBillableI63.212Cerebral infarction due to unspecified occlusion or stenosis of left vertebral arteryBillableI63.213Cerebral infarction due to unspecified occlusion or stenosis of bilateral vertebral arteriesBillableI63.219Cerebral infarction due to unspecified occlusion or stenosis of unspecified vertebral arteryBillableI63.22Cerebral infarction due to unspecified occlusion or stenosis of basilar arteryBillableI63.23Cerebral infarction due to unspecified occlusion or stenosis of carotid arteriesNon-BillableI63.231Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteriesBillableI63.232Cerebral infarction due to unspecified occlusion or stenosis of left carotid arteriesBillableI63.233Cerebral infarction due to unspecified occlusion or stenosis of bilateral carotid arteriesBillableI63.239Cerebral infarction due to unspecified occlusion or stenosis of unspecified carotid arteryBillableI63.29Cerebral infarction due to unspecified occlusion or stenosis of other precerebral arteriesBillableI63.3Cerebral infarction due to thrombosis of cerebral arteriesNon-BillableI63.30Cerebral infarction due to thrombosis of unspecified cerebral arteryBillableI63.31Cerebral infarction due to thrombosis of middle cerebral arteryNon-BillableI63.311Cerebral infarction due to thrombosis of right middle cerebral arteryBillableI63.312Cerebral infarction due to thrombosis of left middle cerebral arteryBillableI63.313Cerebral infarction due to thrombosis of bilateral middle cerebral arteriesBillableI63.319Cerebral infarction due to thrombosis of unspecified middle cerebral arteryBillableI63.32Cerebral infarction due to thrombosis of anterior cerebral arteryNon-BillableI63.321Cerebral infarction due to thrombosis of right anterior cerebral arteryBillableI63.322Cerebral infarction due to thrombosis of left anterior cerebral arteryBillableI63.323Cerebral infarction due to thrombosis of bilateral anterior cerebral arteriesBillableI63.329Cerebral infarction due to thrombosis of unspecified anterior cerebral arteryBillableI63.33Cerebral infarction due to thrombosis of posterior cerebral arteryNon-BillableI63.331Cerebral infarction due to thrombosis of right posterior cerebral arteryBillableI63.332Cerebral infarction due to thrombosis of left posterior cerebral arteryBillableI63.333Cerebral infarction due to thrombosis of bilateral posterior cerebral arteriesBillableI63.339Cerebral infarction due to thrombosis of unspecified posterior cerebral arteryBillableI63.34Cerebral infarction due to thrombosis of cerebellar arteryNon-BillableI63.341Cerebral infarction due to thrombosis of right cerebellar arteryBillableI63.342Cerebral infarction due to thrombosis of left cerebellar arteryBillableI63.343Cerebral infarction due to thrombosis of bilateral cerebellar arteriesBillableI63.349Cerebral infarction due to thrombosis of unspecified cerebellar arteryBillableI63.39Cerebral infarction due to thrombosis of other cerebral arteryBillableI63.4Cerebral infarction due to embolism of cerebral arteriesNon-BillableI63.40Cerebral infarction due to embolism of unspecified cerebral arteryBillableI63.41Cerebral infarction due to embolism of middle cerebral arteryNon-BillableI63.411Cerebral infarction due to embolism of right middle cerebral arteryBillableI63.412Cerebral infarction due to embolism of left middle cerebral arteryBillableI63.413Cerebral infarction due to embolism of bilateral middle cerebral arteriesBillableI63.419Cerebral infarction due to embolism of unspecified middle cerebral arteryBillableI63.42Cerebral infarction due to embolism of anterior cerebral arteryNon-BillableI63.421Cerebral infarction due to embolism of right anterior cerebral arteryBillableI63.422Cerebral infarction due to embolism of left anterior cerebral arteryBillableI63.423Cerebral infarction due to embolism of bilateral anterior cerebral arteriesBillableI63.429Cerebral infarction due to embolism of unspecified anterior cerebral arteryBillableI63.43Cerebral infarction due to embolism of posterior cerebral arteryNon-BillableI63.431Cerebral infarction due to embolism of right posterior cerebral arteryBillableI63.432Cerebral infarction due to embolism of left posterior cerebral arteryBillableI63.433Cerebral infarction due to embolism of bilateral posterior cerebral arteriesBillableI63.439Cerebral infarction due to embolism of unspecified posterior cerebral arteryBillableI63.44Cerebral infarction due to embolism of cerebellar arteryNon-BillableI63.441Cerebral infarction due to embolism of right cerebellar arteryBillableI63.442Cerebral infarction due to embolism of left cerebellar arteryBillableI63.443Cerebral infarction due to embolism of bilateral cerebellar arteriesBillableI63.449Cerebral infarction due to embolism of unspecified cerebellar arteryBillableI63.49Cerebral infarction due to embolism of other cerebral arteryBillableI63.5Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteriesNon-BillableI63.50Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebral arteryBillableI63.51Cerebral infarction due to unspecified occlusion or stenosis of middle cerebral arteryNon-BillableI63.511Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral arteryBillableI63.512Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral arteryBillableI63.513Cerebral infarction due to unspecified occlusion or stenosis of bilateral middle cerebral arteriesBillableI63.519Cerebral infarction due to unspecified occlusion or stenosis of unspecified middle cerebral arteryBillableI63.52Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral arteryNon-BillableI63.521Cerebral infarction due to unspecified occlusion or stenosis of right anterior cerebral arteryBillableI63.522Cerebral infarction due to unspecified occlusion or stenosis of left anterior cerebral arteryBillableI63.523Cerebral infarction due to unspecified occlusion or stenosis of bilateral anterior cerebral arteriesBillableI63.529Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral arteryBillableI63.53Cerebral infarction due to unspecified occlusion or stenosis of posterior cerebral arteryNon-BillableI63.531Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral arteryBillableI63.532Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral arteryBillableI63.533Cerebral infarction due to unspecified occlusion or stenosis of bilateral posterior cerebral arteriesBillableI63.539Cerebral infarction due to unspecified occlusion or stenosis of unspecified posterior cerebral arteryBillableI63.54Cerebral infarction due to unspecified occlusion or stenosis of cerebellar arteryNon-BillableI63.541Cerebral infarction due to unspecified occlusion or stenosis of right cerebellar arteryBillableI63.542Cerebral infarction due to unspecified occlusion or stenosis of left cerebellar arteryBillableI63.543Cerebral infarction due to unspecified occlusion or stenosis of bilateral cerebellar arteriesBillableI63.549Cerebral infarction due to unspecified occlusion or stenosis of unspecified cerebellar arteryBillableI63.59Cerebral infarction due to unspecified occlusion or stenosis of other cerebral arteryBillableI63.6Cerebral infarction due to cerebral venous thrombosis, nonpyogenicBillableI63.8Other cerebral infarctionNon-BillableI63.81Other cerebral infarction due to occlusion or stenosis of small arteryBillableI63.89Other cerebral infarctionBillableI63.9Cerebral infarction, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is I63 a billable ICD-10-CM code?

No, I63 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does I63 mean?

I63 is the ICD-10-CM diagnosis code for "Cerebral infarction". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is I63 in?

I63 is located in Section I60-I69 — "Cerebrovascular diseases" within Chapter 9 of the ICD-10-CM Tabular List.

What are the sub-codes of I63?

I63 has 9 sub-code(s) that provide more specific detail: I63.0, I63.1, I63.2, I63.3, I63.4 and more.

When should I use I63?

Use I63 when the patients documented diagnosis matches "Cerebral infarction" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Cerebral infarction?

The ICD-10-CM code for Cerebral infarction is I63.

Can I63 be used for primary diagnosis?

No, I63 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is I63 in?

I63 is in Chapter 9 of the ICD-10-CM Tabular List.

What conditions are excluded from I63?

Type 1 Excludes for I63 include: neonatal cerebral infarction (P91.82-).

Is I63 valid for 2026?

Yes, I63 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousI62.9Nontraumatic intracranial hemorrhage, unspecifiedNext →I63.0Cerebral infarction due to thrombosis of precerebral arteries
Code Details
I63
Cerebral infarction
Non-Billable / Non-Specific Code
9 — Diseases of the circulatory system (I00-I99)
I60-I69 — Cerebrovascular diseases
2026 ICD-10-CM