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I20 Non-Billable Code

Angina pectoris

Chapter Classification

Chapter 9 Diseases of the circulatory system (I00-I99)

Section Detail

I20-I25 Ischemic heart diseases (I20-I25)

Coding Guidelines & Notes

excludes1
  • angina pectoris with atherosclerotic heart disease of native coronary arteries (I25.1-)
  • atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)
  • postinfarction angina (I23.7)
useAdditionalCode
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

More Specific Diagnosis Codes

This code is not billable as it requires a higher level of specificity. Select a more specific code below.

  • I20.0 - Unstable angina Billable
  • I20.1 - Angina pectoris with documented spasm Billable
  • I20.2 - Refractory angina pectoris Billable
  • I20.8 - Other forms of angina pectoris
  • I20.9 - Angina pectoris, unspecified Billable

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