Subsequent non-ST elevation (NSTEMI) myocardial infarction
ICD-10 I22.2 is a billable code used to indicate a diagnosis of subsequent non-st elevation (nstemi) myocardial infarction.
I22.2 refers to a subsequent non-ST elevation myocardial infarction (NSTEMI), which is a type of heart attack characterized by partial blockage of blood flow to the heart muscle. Clinically, patients may present with symptoms such as chest pain, shortness of breath, fatigue, and diaphoresis. The anatomy involved primarily includes the coronary arteries, which supply blood to the heart. NSTEMI occurs when there is a rupture of an atherosclerotic plaque and subsequent thrombus formation, leading to reduced blood flow and ischemia without the classic ST-segment elevation seen in STEMI. Disease progression can lead to further myocardial damage, heart failure, or arrhythmias if not managed promptly. Diagnostic considerations include elevated cardiac biomarkers (such as troponins), ECG changes, and imaging studies. Proper identification and management are crucial to prevent complications and improve patient outcomes.
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
I22.2 specifically covers subsequent non-ST elevation myocardial infarctions that occur after an initial myocardial infarction. It includes cases where patients may experience recurrent ischemic episodes or complications related to their heart condition.
I22.2 should be used when a patient has a documented history of a previous myocardial infarction and presents with a subsequent NSTEMI. It is important to differentiate it from codes for ST elevation myocardial infarction (I21.0-I21.9) and unspecified myocardial infarction (I21.9).
Documentation must include evidence of a previous myocardial infarction, current symptoms consistent with NSTEMI, elevated cardiac biomarkers, and ECG findings that support the diagnosis of NSTEMI.
