I30-I52: Other forms of heart disease

I30: Acute pericarditis

Acute pericarditis is a condition that affects the pericardium, a thin, two-layered sac surrounding the heart. It's characterized by inflammation of this sac, typically presenting quickly and unexpectedly. This inflammation can cause different symptoms, the most common being sharp, stabbing chest pain that may feel worse when lying down or taking a deep breath. Other symptoms can include shortness of breath when lying flat, fatigue, mild fever, and a dry cough. The causes of acute pericarditis are numerous, often a result of infections like viruses, bacteria, or fungal infections, though it can also be triggered by certain medications, kidney failure, heart attack, or other medical conditions. It may also occur without any known cause. Acute pericarditis typically progresses over days to weeks and may resolve on its own or with treatment. However, it can also lead to complications such as fluid accumulation around the heart or chronic pericarditis if it's not properly managed.