Allergic rhinitis (AR) or allergic inflammation of the nasal airways is an atopic disease presenting with symptoms of sneezing, nasal congestion, clear rhinorrhea, and nasal pruritis. It is an IgE-mediated immune response that is against inhaled antigens in the immediate phase, with a subsequent leukotriene-mediated late phase.
Acute myocardial infarction is myocardial necrosis resulting from acute obstruction of a coronary artery. Symptoms include chest discomfort with or without dyspnea, nausea, and/or diaphoresis. Diagnosis is by electrocardiography (ECG) and the presence or absence of serologic markers. Acute myocardial infarction is one of the leading causes of death in the developed world.
Know when to assign diagnosis codes for chronic conditions. While