Acute myocarditis
ICD-10 I40 is a used to indicate a diagnosis of acute myocarditis.
Acute myocarditis is an inflammatory condition of the myocardium, the muscular layer of the heart wall. It can be caused by various infectious agents, including viruses (most commonly), bacteria, fungi, and parasites, as well as autoimmune diseases and exposure to certain toxins. Clinically, patients may present with symptoms such as chest pain, fatigue, dyspnea, palpitations, and signs of heart failure. The disease can progress rapidly, leading to severe complications such as dilated cardiomyopathy, arrhythmias, or even sudden cardiac death. Diagnosis typically involves a combination of clinical evaluation, electrocardiograms (ECGs), echocardiography, and cardiac MRI, along with laboratory tests to identify specific pathogens or inflammatory markers. Early recognition and management are crucial to prevent long-term cardiac damage and improve outcomes. Treatment may include supportive care, medications to manage heart failure symptoms, and in some cases, immunosuppressive therapy depending on the underlying cause.
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
I40 encompasses acute myocarditis due to infectious agents, autoimmune conditions, and toxic exposures. It does not include chronic myocarditis or myocarditis due to ischemic heart disease.
I40 should be used when the patient presents with acute myocarditis symptoms and has a confirmed diagnosis through clinical evaluation and diagnostic testing, distinguishing it from chronic conditions or other heart diseases.
Documentation must include clinical findings, diagnostic test results (such as ECG, echocardiogram, or MRI), and any laboratory tests indicating inflammation or infection. Clear notes on the patient's symptoms and treatment plan are also essential.
