ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
ICD-10 I21.19 is a billable code used to indicate a diagnosis of st elevation (stemi) myocardial infarction involving other coronary artery of inferior wall.
I21.19 refers to ST elevation myocardial infarction (STEMI) involving other coronary arteries of the inferior wall. This condition occurs when there is a complete blockage of a coronary artery, leading to ischemia and subsequent necrosis of the heart muscle, specifically affecting the inferior wall. The inferior wall is typically supplied by the right coronary artery (RCA) in right-dominant coronary systems or the left circumflex artery (LCX) in left-dominant systems. Clinical presentation often includes chest pain, shortness of breath, and diaphoresis, with potential complications such as arrhythmias and heart failure. Diagnosis is confirmed through electrocardiogram (ECG) findings showing ST-segment elevation, along with elevated cardiac biomarkers. Timely intervention is critical, often involving reperfusion therapy such as percutaneous coronary intervention (PCI) or thrombolytics. The disease progression can lead to significant morbidity if not addressed promptly, highlighting the importance of rapid diagnosis and treatment in emergency settings.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
I21.19 covers ST elevation myocardial infarction involving other coronary arteries affecting the inferior wall, which may include occlusions in arteries other than the RCA or LCX, leading to inferior wall ischemia.
I21.19 should be used when the myocardial infarction is specifically identified as involving the inferior wall and not attributable to the left anterior descending artery or other specified arteries.
Documentation should include ECG findings showing ST elevation, clinical symptoms, treatment provided, and any imaging or lab results that confirm the diagnosis of inferior wall STEMI.
