Angina pectoris with documented spasm
ICD-10 I20.1 is a billable code used to indicate a diagnosis of angina pectoris with documented spasm.
I20.1 refers to angina pectoris with documented spasm, a condition characterized by chest pain or discomfort due to transient ischemia of the heart muscle. This type of angina is often associated with coronary artery spasm, which can occur in the absence of significant coronary artery disease. The spasm can lead to temporary narrowing of the coronary arteries, resulting in reduced blood flow and oxygen to the heart. Clinically, patients may present with episodes of chest pain that can occur at rest or during exertion, often triggered by stress, smoking, or exposure to cold. The anatomy involved primarily includes the coronary arteries, which supply blood to the heart muscle. Disease progression can vary; while some patients may experience infrequent episodes, others may develop more severe symptoms or complications such as myocardial infarction. Diagnostic considerations include a thorough patient history, physical examination, and tests such as electrocardiograms (ECGs), stress tests, or coronary angiography to confirm the presence of spasms. Effective management often involves lifestyle modifications and medications such as nitrates or calcium channel blockers to alleviate symptoms and prevent episodes.
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
I20.1 specifically covers angina pectoris that is associated with documented coronary artery spasm. This includes episodes of chest pain that are confirmed to be due to spasms in the coronary arteries, rather than other causes of angina.
I20.1 should be used when there is clear documentation of angina pectoris specifically linked to coronary artery spasm. If the angina is due to other causes, such as stable angina or unstable angina, the appropriate codes (I20.0 or I20.9) should be selected.
Documentation must include a clear diagnosis of angina pectoris with evidence of coronary artery spasm, such as results from diagnostic tests (e.g., angiography, stress tests) and a detailed patient history that outlines the nature and triggers of the angina episodes.
