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Home/Diagnosis/ICD-10 Coding for Basilar Artery Stenosis

ICD-10 Coding for Basilar Artery Stenosis

I65.1
I63.5-

Complete ICD-10-CM coding and documentation guide for icd-10 coding for basilar artery stenosis includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Basilar Artery Narrowing
Basilar Artery Occlusion
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Key Information: ICD-10 Coding for Basilar Artery Stenosis

Essential facts and insights about ICD-10 Coding for Basilar Artery Stenosis

Use ICD-10 code I65.1 for occlusion and stenosis of basilar artery, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Occlusion and stenosis of basilar artery

Billable Code
I65.1
Billable

Diagnostic Criteria

clinical:
  • • Imaging shows ≥50% stenosis without infarction.
documentation:
  • • Symptoms documented without permanent deficits.

Applicable To

  • • Basilar artery stenosis without infarction

Important Notes

  • • Ensure documentation specifies no infarction for I65.1.

Cerebral infarction due to occlusion/stenosis of basilar artery

Non-Billable
I63.5-
Non-Billable

Diagnostic Criteria

clinical:
  • • MRI/CT confirms acute infarction in posterior circulation territories
documentation:
  • • Documentation links stenosis to infarction

Applicable To

  • • Infarction due to basilar artery stenosis

Important Notes

  • • Ensure documentation explicitly links stenosis to infarction.
Ancillary Codes

Additional codes that may be used with this diagnosis

I67.1

Cerebral atherosclerosis

Use if stenosis is atherosclerotic.

Frequently Asked Questions

What is the ICD-10 code for basilar artery stenosis?

The ICD-10 code for basilar artery stenosis without infarction is I65.1. If it results in a cerebral infarction, use I63.5-.

How is basilar artery stenosis documented?

Document basilar artery stenosis by specifying stenosis severity, symptoms, and imaging results. Ensure no infarction is present for I65.1.

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