Is I35.1 a billable ICD-10 code?

Yes. I35.1 (Nonrheumatic aortic (valve) insufficiency) is billable and can be used for insurance claims. Always verify payer-specific requirements.

I35.1 ✓ Billable

Nonrheumatic aortic (valve) insufficiency

Q: What is ICD-10 code I35.1?

ICD-10-CM code I35.1 stands for "Nonrheumatic aortic (valve) insufficiency". It is a billable code in the Diseases of the Circulatory System chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Circulatory System

Code

I35.1

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Diseases of the Circulatory System

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code I35.1?

ICD-10-CM code I35.1 represents Nonrheumatic aortic (valve) insufficiency. It is a billable diagnosis code in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.

Is I35.1 billable?

Yes. I35.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is I35.1 in?

I35.1 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.

Related codes in the I35 category

I35 Nonrheumatic aortic valve disorders Non-billable I35.0 Nonrheumatic aortic (valve) stenosis Billable I35.2 Nonrheumatic aortic (valve) stenosis with insufficiency Billable I35.8 Other nonrheumatic aortic valve disorders Billable I35.9 Nonrheumatic aortic valve disorder, unspecified Billable

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