What is the ICD-10 code for nonrheumatic aortic stenosis?

The ICD-10 code for nonrheumatic aortic stenosis is I35.0. It is used when the stenosis is confirmed as nonrheumatic.

How do you code rheumatic aortic stenosis?

Rheumatic aortic stenosis is coded as I06.0 in ICD-10. Ensure documentation includes a history of rheumatic fever or commissural fusion.

What is the difference between I35.0 and I06.0?

I35.0 is for nonrheumatic aortic stenosis, while I06.0 is for rheumatic aortic stenosis. Documentation must specify etiology.

ICD-10 Coding for Aortic Stenosis(I35.0, I06.0, I08.0)

Save

Comprehensive guide to ICD-10 coding for aortic stenosis, including nonrheumatic and rheumatic cases. Learn about documentation requirements and common pitfalls.

Also known as:

ASAortic Valve Stenosis

Related ICD-10 Code Ranges

Complete code families applicable to Aortic Stenosis

I00-I99Primary Range

Diseases of the circulatory system

→

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
I35.0	Nonrheumatic aortic (valve) stenosis	Use when aortic stenosis is confirmed as nonrheumatic.	Echocardiography showing AVA <1.0 cm² Peak velocity ≥4.0 m/s
I06.0	Rheumatic aortic stenosis	Use when aortic stenosis is confirmed as rheumatic.	History of rheumatic fever Echocardiography showing commissural fusion
Q23.1	Congenital stenosis of aortic valve	Use for congenital aortic stenosis, such as bicuspid valve.	Congenital diagnosis confirmed by echocardiography

Primary ICD-10-CM Codes

Nonrheumatic aortic (valve) stenosis

I35.0Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Rheumatic aortic stenosisI06.0

Nonrheumatic aortic stenosisI35.0

Documentation & Coding Risks

Avoid these common issues when documenting Aortic Stenosis.

Non-specific documentation of aortic stenosis

Impact

Clinical: Leads to inappropriate treatment plans., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims due to lack of specificity.

Mitigation

Use specific terms for etiology and severity, Ensure echocardiographic data is included

Coding I35.0 for congenital AS

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with ICD-10 guidelines., Data Quality: Inaccurate clinical data and reporting.

Mitigation

Use Q23.1 for congenital cases and I35.0 if acquired stenosis develops.

Missing I08.x for multivalvular disease

Impact

Reimbursement: Potential underpayment due to incomplete coding., Compliance: Failure to comply with coding standards., Data Quality: Incomplete representation of patient's condition.

Mitigation

Use I08.x when both aortic and mitral valves are involved.

Etiology Documentation

Impact

Failure to document etiology can lead to incorrect coding.

Mitigation

Implement mandatory fields for etiology in EHR templates.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with I35.0.

Primary Code

I35.0

Nonrheumatic aortic (valve) stenosis

Quick Navigation

ICD-10 codes5

Coding risks4

FAQs3

ICD-10 Coding for Aortic Stenosis(I35.0, I06.0, I08.0)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for nonrheumatic aortic stenosis?

How do you code rheumatic aortic stenosis?

What is the difference between I35.0 and I06.0?

Related condition guides