Specific code icon 2017 ICD-10-CM Diagnosis Code I20.9

Angina pectoris, unspecified

    2016 2017 Billable/Specific Code

  • I20.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • This is the American ICD-10-CM version of I20.9. Other international versions of ICD-10 I20.9 may differ.
  • Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Information
  • A disorder characterized by substernal discomfort due to insufficient myocardial oxygenation.
  • A heart condition marked by paroxysms of chest pain due to reduced oxygen to the heart.
  • Angina is chest pain or discomfort you get when your heart muscle does not get enough blood. It may feel like pressure or a squeezing pain in your chest. It may feel like indigestion. You may also feel pain in your shoulders, arms, neck, jaw or back. Angina is a symptom of coronary artery disease (cad), the most common heart disease. Cad happens when a sticky substance called plaque builds up in the arteries that supply blood to the heart, reducing blood flow.there are three types of angina: stable, unstable and variant. Unstable angina is the most dangerous. It does not follow a pattern and can happen without physical exertion. It does not go away with rest or medicine. It is a sign that you could have a heart attack soon.not all chest pain or discomfort is angina. If you have chest pain, you should see your health care provider.
  • Chest pain caused by coronary heart disease
  • Previous or current symptoms described as chest pain or pressure, jaw pain, arm pain, or other equivalent discomfort suggestive of cardiac ischemia. (nih roadmap cardiovascular data standards working group)
  • Recurring thoracic pain or discomfort which occurs when a part of the heart does not receive enough blood; usually caused by exertion or excitement.
  • The symptom of paroxysmal pain consequent to myocardial ischemia usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the myocardium exceed that supplied by the coronary circulation.
Applicable To
  • Angina NOS
  • Anginal syndrome
  • Cardiac angina
  • Ischemic chest pain
Approximate Synonyms
  • Angina
  • Angina pectoris (chest pain)
  • Angina, stable
  • Cardiac syndrome X
  • Stable angina
ICD-10-CM I20.9 is grouped within Diagnostic Related Group (MS-DRG v34.0):
  • 311 Angina pectoris

Convert ICD-10-CM I20.9 to ICD-9-CM

The following ICD-10-CM Index entries contain back-references to ICD-10-CM I20.9: