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I35

Non-billable

Nonrheumatic aortic valve disorders

I35 is the ICD-10-CM code for Nonrheumatic aortic valve disorders. It is a non-billable category code — use a more specific child code such as I35.0 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Subcodes
5
Edition
FY2026

I00-I99 Diseases of the circulatory system

Excludes2 — not included here

  • •aortic valve disorder of unspecified cause but with diseases of mitral and/or tricuspid valve(s) (I08.-)
  • •aortic valve disorder specified as congenital (Q23.0, Q23.1)
  • •aortic valve disorder specified as rheumatic (I06.-)
  • •hypertrophic subaortic stenosis (I42.1)

Notes

  • •, if applicable, bicuspid aortic valve (Q23.81)

Frequently asked questions

What is ICD-10 code I35?
I35 is the ICD-10-CM code for "Nonrheumatic aortic valve disorders". It falls under I00-I99 Diseases of the circulatory system.
Is I35 a billable code?
No — I35 is a non-billable header code. Use a more specific child code (such as I35.0) for billing.
What are the subcodes of I35?
I35 has 5 more specific child codes, including I35.0, I35.1, I35.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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