I34.2 ICD-10-CA code: Nonrheumatic mitral (valve) stenosis
I34.2 is the ICD-10-CA code for “Nonrheumatic mitral (valve) stenosis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
I34.2Nonrheumatic mitral (valve) stenosis
ICD-10-CA · Canada · Also written I342
Index terms
Entries in CIHI’s alphabetical index that lead to I34.2. Searching the index by the condition the note names is how coders reach this code.
- Stenosis (cicatricial), mitral (chronic) (inactive) (valve), specified cause, except rheumatic
Notes for I34.2
As CIHI prints them, with any note I34.2 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Mitral (valve):• disease (I05.9)• failure (I05.8)• stenosis (I05.0)specified as rheumatic (I05.-)when of unspecified cause but with mention of:• diseases of aortic valve (I08.0)• mitral stenosis or obstruction (I05.0)when specified as congenital (Q23.2-Q23.9)From I34 Nonrheumatic mitral valve disorders
- 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 I34.2 sits
- 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
- 2Block I30-I52Other forms of heart disease
- 3Category I34Nonrheumatic mitral valve disorders
- 4Valid code I34.2Nonrheumatic mitral (valve) stenosis
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.
Frequently asked questions
What does ICD-10-CA code I34.2 mean?
I34.2 is the ICD-10-CA code for “Nonrheumatic mitral (valve) stenosis” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is I34.2 in ICD-10-CA?
I34.2 sits under I34 Nonrheumatic mitral valve disorders, within I30-I52 Other forms of heart disease, within Chapter 9: Diseases of the circulatory system (I00-I99).
What coding notes apply to I34.2?
ICD-10-CA lists Excludes notes for I34.2, 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.