I35 ICD-10-CA category: Nonrheumatic aortic valve disorders

I35 isn’t a code on its own. Choose one of the 5 codes beneath it, the one the documentation supports.

Official description

I35

Nonrheumatic aortic valve disorders

ICD-10-CA · Canada

Codes in I35

I35 isn’t a code on its own. Open the code that matches what the note documents.

I35.0Aortic (valve) stenosis I35.1Aortic (valve) insufficiency I35.2Aortic (valve) stenosis with insufficiency I35.8Other aortic valve disorders I35.9Aortic valve disorder, unspecified

Notes for I35

As CIHI prints them, with any note I35 takes from the headings above it.

Excludes

Conditions classified elsewhere.

Hypertrophic subaortic stenosis (I42.1)when:• of unspecified cause but with mention of diseases of mitral valve (I08.0)• specified as congenital (Q23.0-Q23.1, Q23.4-Q23.9)• specified as rheumatic (I06.-)
Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)transient cerebral ischaemic attacks and related syndromes (G45.-)From Chapter 9: Diseases of the circulatory system (I00-I99)

Where I35 sits

1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
2Block I30-I52Other forms of heart disease
3Category I35Nonrheumatic aortic valve disorders

Source and release

Data release: ICD-10-CA · FY 2026–2027
Effective date: Apr 1, 2026
Publisher: CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See I35 in the CIHI source

Frequently asked questions

Is I35 a valid ICD-10-CA code?

No. I35 (Nonrheumatic aortic valve disorders) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 5 codes; record the one the documentation supports.

Where is I35 in ICD-10-CA?

I35 sits under I30-I52 Other forms of heart disease, within Chapter 9: Diseases of the circulatory system (I00-I99).

What coding notes apply to I35?

ICD-10-CA lists Excludes notes for I35, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.