I50 ICD-10-CA category: Heart failure

I50 isn’t a code on its own. Choose one of the 5 codes beneath it, the one the documentation supports.

Official description

I50

Heart failure

ICD-10-CA · Canada

Codes in I50

I50 isn’t a code on its own. Open the group that matches what the note documents.

I50.0Congestive heart failure I50.1Left ventricular failure (3 codes)I50.9Heart failure, unspecified

Notes for I50

As CIHI prints them, with any note I50 takes from the headings above it.

Use additional code

Add a code for this detail when the note documents it.

Use additional code from (E10-E14) with fourth and fifth characters .52 to classify any associated diabetes mellitus.
Use additional code from (I11) (hypertensive heart disease) or (I13) (hypertensive heart and renal disease) for heart failure due to hypertension

Excludes

Conditions classified elsewhere.

Complicating:• abortion or ectopic or molar pregnancy (O00-O07) (O08.8)• obstetric surgery and procedures (O75.4)following cardiac surgery or due to presence of cardiac prosthesis (I97.1)neonatal cardiac failure (P29.0)
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 I50 sits

1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
2Block I30-I52Other forms of heart disease
3Category I50Heart failure

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 I50 in the CIHI source

Frequently asked questions

Is I50 a valid ICD-10-CA code?

No. I50 (Heart failure) 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 I50 in ICD-10-CA?

I50 sits under I30-I52 Other forms of heart disease, within Chapter 9: Diseases of the circulatory system (I00-I99).

What coding notes apply to I50?

ICD-10-CA lists Use additional code, Excludes notes for I50, 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.

View I30-I52