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I25.2 ICD-10-CA code: Old myocardial infarction

I25.2 is the ICD-10-CA code for “Old myocardial infarction” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

I25.2

Old myocardial infarction

ICD-10-CA · Canada · Also written I252

Index terms

Entries in CIHI’s alphabetical index that lead to I25.2. Searching the index by the condition the note names is how coders reach this code.

  • Scar, scarring, myocardium, myocardial
  • Scar, scarring, myocardium, myocardial, with diabetes mellitus
  • Infarct, infarction (of), myocardium, myocardial (acute or with a stated duration of 4 weeks or less), healed or old
  • Infarct, infarction (of), myocardium, myocardial (acute or with a stated duration of 4 weeks or less), healed or old, with diabetes mellitus
  • Infarct, infarction (of), myocardium, myocardial (acute or with a stated duration of 4 weeks or less), past (diagnosed on ECG or other special investigation, but currently presenting no symptoms)
  • Infarct, infarction (of), myocardium, myocardial (acute or with a stated duration of 4 weeks or less), past (diagnosed on ECG or other special investigation, but currently presenting no symptoms), with diabetes mellitus

Notes for I25.2

As CIHI prints them, with any note I25.2 takes from the headings above it.

Includes

  • Healed myocardial infarctionPast myocardial infarction diagnosed by ECG or other special investigation, but currently presenting no symptoms.
  • With mention of hypertension (I10-I15)From I20-I25 Ischaemic heart diseases

Use additional code

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

Excludes

Conditions classified elsewhere.

  • Cardiovascular disease NOS (I51.6)From I25 Chronic ischaemic heart disease
  • 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)

Note

  • For morbidity, duration as used in categories (I21, I22, I24 and I25) refers to the interval elapsing between onset of the ischaemic episode and admission to care.From I20-I25 Ischaemic heart diseases

Where I25.2 sits

  1. 1ChapterChapter 9: Diseases of the circulatory system (I00-I99)
  2. 2Block I20-I25Ischaemic heart diseases
  3. 3Category I25Chronic ischaemic heart disease
  4. 4Valid code I25.2Old myocardial infarction

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 I25.2 in the CIHI source

Frequently asked questions

What does ICD-10-CA code I25.2 mean?

I25.2 is the ICD-10-CA code for “Old myocardial infarction” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is I25.2 in ICD-10-CA?

I25.2 sits under I25 Chronic ischaemic heart disease, within I20-I25 Ischaemic heart diseases, within Chapter 9: Diseases of the circulatory system (I00-I99).

What coding notes apply to I25.2?

ICD-10-CA lists Includes, Use additional code, Excludes, Note notes for I25.2, 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.

Codes beside I25.2

I25.0Atherosclerotic cardiovascular disease, so describedI25.1Atherosclerotic heart diseaseI25.3Aneurysm of heartI25.4Coronary artery aneurysm and dissectionI25.5Ischaemic cardiomyopathyI25.6Silent myocardial ischaemiaI25.8Other forms of chronic ischaemic heart diseaseI25.9Chronic ischaemic heart disease, unspecified