I35Header code — not billable

Nonrheumatic aortic valve disorders

Chapter
9. Diseases of the circulatory system
Category
I35
Effective date
October 1, 2026

Related codes in category I35

I35.0Nonrheumatic aortic (valve) stenosisYesI35.1Nonrheumatic aortic (valve) insufficiencyYesI35.2Nonrheumatic aortic (valve) stenosis with insufficiencyYesI35.8Other nonrheumatic aortic valve disordersYesI35.9Nonrheumatic aortic valve disorder, unspecifiedYes

Frequently asked questions

What is ICD-10 code I35?

I35 is an ICD-10-CM diagnosis code for Nonrheumatic aortic valve disorders.

Is I35 a billable code?

No. I35 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is I35 in?

I35 falls under Chapter 9: Diseases of the circulatory system.

When did I35 become effective?

I35 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to I35?

I35 belongs to category I35, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.