Angina pectoris I20-

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Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code to identify:
  • exposure to environmental tobacco smoke (
    ICD-10-CM Diagnosis Code Z77.22

    Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Exposure to second hand tobacco smoke (acute) (chronic)
    • Passive smoking (acute) (chronic)
    Type 1 Excludes
    Type 2 Excludes
    • occupational exposure to environmental tobacco smoke (Z57.31)
    Z77.22
    )
  • history of tobacco dependence (
    ICD-10-CM Diagnosis Code Z87.891

    Personal history of nicotine dependence

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Type 1 Excludes
    • current nicotine dependence (F17.2-)
    Z87.891
    )
  • occupational exposure to environmental tobacco smoke (
    ICD-10-CM Diagnosis Code Z57.31

    Occupational exposure to environmental tobacco smoke

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Type 2 Excludes
    • exposure to environmental tobacco smoke (Z77.22)
    Z57.31
    )
  • tobacco dependence (
    ICD-10-CM Diagnosis Code F17
    • F17 Nicotine dependence
      • F17.2 Nicotine dependence
        • F17.20 Nicotine dependence, unspecified
          • F17.200 Nicotine dependence, unspecified, uncomplicat...
          • F17.201 Nicotine dependence, unspecified, in remissio...
          • F17.203 Nicotine dependence unspecified, with withdra...
          • F17.208 Nicotine dependence, unspecified, with other ...
          • F17.209 Nicotine dependence, unspecified, with unspec...
        • F17.21 Nicotine dependence, cigarettes
          • F17.210 Nicotine dependence, cigarettes, uncomplicate...
          • F17.211 Nicotine dependence, cigarettes, in remission...
          • F17.213 Nicotine dependence, cigarettes, with withdra...
          • F17.218 Nicotine dependence, cigarettes, with other n...
          • F17.219 Nicotine dependence, cigarettes, with unspeci...
        • F17.22 Nicotine dependence, chewing tobacco
          • F17.220 Nicotine dependence, chewing tobacco, uncompl...
          • F17.221 Nicotine dependence, chewing tobacco, in remi...
          • F17.223 Nicotine dependence, chewing tobacco, with wi...
          • F17.228 Nicotine dependence, chewing tobacco, with ot...
          • F17.229 Nicotine dependence, chewing tobacco, with un...
        • F17.29 Nicotine dependence, other tobacco product
          • F17.290 Nicotine dependence, other tobacco product, u...
          • F17.291 Nicotine dependence, other tobacco product, i...
          • F17.293 Nicotine dependence, other tobacco product, w...
          • F17.298 Nicotine dependence, other tobacco product, w...
          • F17.299 Nicotine dependence, other tobacco product, w...
    F17.-
    )
  • tobacco use (
    ICD-10-CM Diagnosis Code Z72.0

    Tobacco use

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Tobacco use NOS
    Type 1 Excludes
    • history of tobacco dependence (Z87.891)
    • nicotine dependence (F17.2-)
    • tobacco dependence (F17.2-)
    • tobacco use during pregnancy (O99.33-)
    Z72.0
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I20. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • angina pectoris with atherosclerotic heart disease of native coronary arteries (
    ICD-10-CM Diagnosis Code I25.1

    Atherosclerotic heart disease of native coronary artery

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Atherosclerotic cardiovascular disease
    • Coronary (artery) atheroma
    • Coronary (artery) atherosclerosis
    • Coronary (artery) disease
    • Coronary (artery) sclerosis
    Type 2 Excludes
    • atheroembolism (I75.-)
    • atherosclerosis of coronary artery bypass graft(s) and transplanted heart (I25.7-)
    Use Additional
    • code, if applicable, to identify:
    • coronary atherosclerosis due to calcified coronary lesion (I25.84)
    • coronary atherosclerosis due to lipid rich plaque (I25.83)
    I25.1-
    )
  • atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (
    ICD-10-CM Diagnosis Code I25.7

    Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • atherosclerosis of bypass graft(s) of transplanted heart without angina pectoris (I25.812)
    • atherosclerosis of coronary artery bypass graft(s) without angina pectoris (I25.810)
    • atherosclerosis of native coronary artery of transplanted heart without angina pectoris (I25.811)
    Use Additional
    • code, if applicable, to identify:
    • coronary atherosclerosis due to calcified coronary lesion (I25.84)
    • coronary atherosclerosis due to lipid rich plaque (I25.83)
    I25.7-
    )
  • postinfarction angina (
    ICD-10-CM Diagnosis Code I23.7

    Postinfarction angina

      2016 2017 2018 2019 2020 Billable/Specific Code Adult Dx (15-124 years)
    I23.7
    )
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.
Codes
  • I20 Angina pectoris
    • I20.0 Unstable angina
    • I20.1 Angina pectoris with documented spasm
    • I20.8 Other forms of angina pectoris
    • I20.9 Angina pectoris, unspecified