What is the ICD-10 code for carotid stenosis?

The ICD-10 codes for carotid stenosis are I65.21 for right carotid, I65.22 for left carotid, and I65.23 for bilateral carotid stenosis.

How is carotid disease documented for coding?

Carotid disease documentation should include laterality, percentage of stenosis, and imaging results to ensure accurate coding.

ICD-10 Coding for Carotid Disease(I65.21, I65.22, I65.23)

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Explore detailed ICD-10 coding guidelines for carotid disease, including documentation requirements, coding pitfalls, and billing considerations.

Also known as:

Carotid Artery DiseaseCarotid StenosisCarotid Atherosclerosis

Related ICD-10 Code Ranges

Complete code families applicable to Carotid Disease

I00-I99Primary Range

Diseases of the circulatory system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
I65.21	Occlusion and stenosis of right carotid artery	Use when there is documented stenosis or occlusion of the right carotid artery.	Duplex ultrasound showing ≥50% narrowing CTA/MRA confirming stenosis
I65.22	Occlusion and stenosis of left carotid artery	Use when there is documented stenosis or occlusion of the left carotid artery.	Duplex ultrasound showing ≥50% narrowing CTA/MRA confirming stenosis
I65.23	Occlusion and stenosis of bilateral carotid arteries	Use when there is documented stenosis or occlusion of both carotid arteries.	Duplex ultrasound showing ≥50% narrowing bilaterally CTA/MRA confirming bilateral stenosis
I77.9	Disorder of arteries and arterioles, unspecified	Use when documentation is vague and does not specify stenosis or occlusion.	Lack of specific documentation for stenosis or occlusion

Primary ICD-10-CM Codes

Occlusion and stenosis of right carotid artery

I65.21Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Dissection of carotid arteryI77.71

Use for dissection with imaging evidence of a tear or flap.

Occlusion and stenosis of right carotid arteryI65.21

Use when specific laterality and stenosis are documented.

Documentation & Coding Risks

Avoid these common issues when documenting Carotid Disease.

Vague documentation of 'carotid disease'.

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims or reduced reimbursement.

Mitigation

Train staff on documentation requirements., Use templates to ensure completeness.

Using I77.9 for 'carotid stenosis' without laterality.

Impact

Reimbursement: May lead to lower reimbursement due to lack of specificity., Compliance: Non-compliance with coding guidelines requiring specificity., Data Quality: Decreases data quality and accuracy in patient records.

Mitigation

Query for side: 'Is the stenosis left, right, or bilateral?'

Specificity of stenosis documentation

Impact

Audits may focus on the specificity of documentation for carotid stenosis.

Mitigation

Ensure all documentation includes laterality, severity, and imaging confirmation.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with I65.21.

Primary Code

I65.21

Occlusion and stenosis of right carotid artery

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ICD-10 codes8

Coding risks3

FAQs2

ICD-10 Coding for Carotid Disease(I65.21, I65.22, I65.23)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for carotid stenosis?

How is carotid disease documented for coding?

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