ICD-10-CM 2027
ICD-10 code for Stunned myocardium
From the official ICD-10-CM alphabetic index entry “Stunned myocardium, neurogenic”. Page updated September 29, 2026.
About coding Stunned myocardium
The ICD-10-CM code for Stunned myocardium is I5A (Non-ischemic myocardial injury (non-traumatic)).
Don't report I5A together with the conditions in its Excludes1 note: acute myocardial infarction (I21.-) and injury of heart (S26.-).
The conditions in its Excludes2 note aren't part of I5A, but may be coded alongside it if the patient has both: other acute ischemic heart diseases (I24.-).
Code first the underlying cause, if known and applicable, such as: acute kidney failure (N17.-), acute myocarditis (I40.-), cardiomyopathy (I42.-), chronic kidney disease (CKD) (N18.-) and 8 more.
Don't confuse with (Excludes1 for I5A)
Common questions about Stunned myocardium ICD-10 codes
What is the ICD-10 code for Stunned myocardium?
- I5A — Non-ischemic myocardial injury (non-traumatic).
Is I5A billable?
- Yes. I5A is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I5A be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I5A as a principal diagnosis.
Is I5A a CC or MCC?
- I5A is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.