ICD-10-CM › I00-I99 › I20-I25 › I20 Angina pectoris › I20.8

I20.8

Other forms of angina pectoris

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

Billable FY2016 to FY2023, and a category header from FY2024.

Submit one of these 2 more specific codes instead:

  • I20.81 Angina pectoris with coronary microvascular dysfunction
  • I20.89 Other forms of angina pectoris

Use instead:

  • I20.2 Refractory angina pectoris stated for FY2022

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2007 Added to the draft code set draft Other forms of angina pectoris
  2. FY2024 Stopped being billable

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from I20 Angina pectoris

Excludes1 - never coded here

  • 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)

Use additional code

  • 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)

Inherited from the I20-I25 section Ischemic heart diseases (I20-I25)

Code also

  • the presence of hypertension (I10-I1A)

Codes in the same group

CodeDescriptionStatus
I20.0 Unstable angina Valid
I20.1 Angina pectoris with documented spasm Valid
I20.2 Refractory angina pectoris Valid
I20.9 Angina pectoris, unspecified Valid