I25.2
Old myocardial infarction
I25.2 (also written I252) is a billable ICD-10-CM diagnosis code for old myocardial infarction. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 56 codes in category I25 (Chronic ischemic heart disease). The Alphabetic Index lists it under 8 entries. Its coding notes include a Use additional code instruction, a Code also instruction and 11 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
I21 may continue to be reported while the MI is four weeks old or less. After that, continuing care is coded as aftercare, and a healed MI may be coded I25.2.
Use additional code
Add the listed code as a secondary code, if known.
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (10 notes)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Inclusion terms
Conditions classified to this code.
- Healed myocardial infarction
- Past myocardial infarction diagnosed by ECG or other investigation, but currently presenting no symptoms
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 8 entries
- History, personal (of), myocardial infarction (old)
- Infarct, infarction, myocardium, myocardial (acute) (with stated duration of 4 weeks or less), diagnosed on ECG, but presenting no symptoms
- Infarct, infarction, myocardium, myocardial (acute) (with stated duration of 4 weeks or less), healed or old
- Infarct, infarction, myocardium, myocardial (acute) (with stated duration of 4 weeks or less), past (diagnosed on ECG or other investigation, but currently presenting no symptoms)
- Occlusion, occluded, artery, coronary (acute) (thrombotic) (without myocardial infarction), healed or old
- Occlusion, occluded, coronary (artery) (vein) (thrombotic), healed or old
- Old (previous) myocardial infarction
- Scar, scarring, myocardium, myocardial