ICD-10 Code I23.0 – Hemopericardium as current complication following acute myocardial infarction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I23.0 – Hemopericardium as current complication following acute myocardial infarction
What it is
This code identifies bleeding into the pericardial sac that occurs as a current complication after an acute myocardial infarction. It reflects a post-infarction cardiac complication, not the infarct itself.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include evidence of pericardial blood accumulation after MI, with signs consistent with cardiac compression or worsening hemodynamic status.
When to use this code
Use I23.0 when the record clearly states hemopericardium as a current complication of an acute MI. Code it when the provider links the pericardial bleeding to the recent infarction and the complication is being actively managed or documented.
Do not use for
Do not use this code for pericardial effusion or tamponade without documentation of hemopericardium after acute MI. Check documentation if the bleed is unrelated to myocardial infarction or if the condition is historical only.
Coding tip
Look for explicit provider wording connecting hemopericardium to the acute MI before assigning I23.0.