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  6. 2024 ICD-10-CM Code I20.2
Version 2024
Billable Code

2024 ICD-10-CM Diagnosis Code I20.2

Refractory angina pectoris

ICD-10-CM Code:
I20.2
ICD-10 Code for:
Refractory angina pectoris
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the circulatory system
    (I00–I99)
    • Ischemic heart diseases
      (I20-I25)
      • Angina pectoris
        (I20)

I20.2 is a billable diagnosis code used to specify a medical diagnosis of refractory angina pectoris. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Clinical Classification

Clinical Information

  • Angina Pectoris

    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.

  • Angina Pectoris, Variant

    a clinical syndrome characterized by the development of chest pain at rest with concomitant transient st segment elevation in the electrocardiogram, but with preserved exercise capacity.

  • Angina, Stable

    persistent and reproducible chest discomfort usually precipitated by a physical exertion that dissipates upon cessation of such an activity. the symptoms are manifestations of myocardial ischemia.

  • Angina, Unstable

    precordial pain at rest, which may precede a myocardial infarction.

  • Microvascular Angina

    angina pectoris or angina-like chest pain with a normal coronary arteriogram and positive exercise test. the cause of the syndrome is unknown. while its recognition is of clinical importance, its prognosis is excellent. (braunwald, heart disease, 4th ed, p1346; jablonski dictionary of syndromes & eponymic diseases, 2d ed). it is different from metabolic syndrome x, a syndrome characterized by insulin resistance and hyperinsulinemia, that has increased risk for cardiovascular disease.

  • Myocardial Ischemia

    a disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. the decreased blood flow may be due to narrowing of the coronary arteries (coronary artery disease), to obstruction by a thrombus (coronary thrombosis), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (myocardial infarction).

  • Myocardial Infarction

    necrosis of the myocardium caused by an obstruction of the blood supply to the heart (coronary circulation).

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Replacement Code

I202 replaces the following previously assigned ICD-10-CM code(s):

  • I20.0 - Unstable angina
  • I20.1 - Angina pectoris with documented spasm
  • I20.8 - Other forms of angina pectoris

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - Code Added, effective from 10/1/2022 through 9/30/2023

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.