ICD-10 Code I23.3 – Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I23.3 – Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction
What it is
This code identifies a rupture of the heart wall that occurs as a current complication after an acute myocardial infarction, without blood in the pericardial sac. It reflects a serious structural complication, not the infarction itself.
Clinical signs
Clinical features vary; refer to documentation. You may see sudden hemodynamic collapse, new murmur, or signs of acute cardiac deterioration after myocardial infarction, with imaging or operative findings confirming wall rupture.
When to use this code
Use I23.3 when the record states a cardiac wall rupture is a current complication of a recent acute myocardial infarction and specifically notes no hemopericardium. Code it from provider documentation, imaging, surgery, or autopsy findings when available.
Apply this code only when the rupture is linked to the acute infarction episode. If the chart does not clearly connect the rupture to MI, check documentation before assigning the code.
Do not use for
Do not use it for myocardial infarction without rupture, pericardial effusion, or rupture with hemopericardium. If the complication is described differently, check documentation.
Coding tip
Verify that the chart says “without hemopericardium” and that the rupture is documented as a current post-MI complication.