1. ICD-10-CM Codes
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2. I00-I99
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3. I20-I25
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4. I20-
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5. 2023 ICD-10-CM Diagnosis Code I20.9

2023 ICD-10-CM Diagnosis Code I20.9

Angina pectoris, unspecified

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• I20.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM I20.9 became effective on October 1, 2022.
• This is the American ICD-10-CM version of I20.9 - other international versions of ICD-10 I20.9 may differ.

• Angina
• Angina pectoris
• Angina pectoris (chest pain)
• Cardiac syndrome x
• History of myocardial infarction with stable angina
• Stable angina
• Stable angina with history of attack

• 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.
• 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.

• 311 Angina pectoris

Convert I20.9 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Type 1 Excludes: I25.119
  , I25.709
  , I25.719
  , I25.729
  , I25.739
  , I25.799
  ICD-10-CM Diagnosis Code I25.119

  Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Adult Dx (15-124 years)

  Applicable To

  • Atherosclerotic heart disease with angina NOS
  • Atherosclerotic heart disease with ischemic chest pain

  Type 1 Excludes

  • unspecified angina pectoris without atherosclerotic heart disease (I20.9)
  ICD-10-CM Diagnosis Code I25.709

  Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Adult Dx (15-124 years)

  Type 1 Excludes

  • unspecified angina pectoris without atherosclerosis of coronary artery bypass graft (I20.9)
  ICD-10-CM Diagnosis Code I25.719

  Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Adult Dx (15-124 years)

  Type 1 Excludes

  • unspecified angina pectoris without atherosclerosis of autologous vein coronary artery bypass graft(s) (I20.9)
  ICD-10-CM Diagnosis Code I25.729

  Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Adult Dx (15-124 years)

  Type 1 Excludes

  • unspecified angina pectoris without atherosclerosis of autologous artery coronary artery bypass graft(s) (I20.9)
  ICD-10-CM Diagnosis Code I25.739

  Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Adult Dx (15-124 years)

  Type 1 Excludes

  • unspecified angina pectoris without atherosclerosis of nonautologous biological coronary artery bypass graft(s) (I20.9)
  ICD-10-CM Diagnosis Code I25.799

  Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Adult Dx (15-124 years)

  Type 1 Excludes

  • unspecified angina pectoris without atherosclerosis of other coronary artery bypass graft(s) (I20.9)

• Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) I20.9
• Pain(s) R52
  - see also Painful
  ICD-10-CM Diagnosis Code R52

  Pain, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Acute pain NOS
  • Generalized pain NOS
  • Pain NOS

  Type 1 Excludes

  • acute and chronic pain, not elsewhere classified (G89.-)
  • localized pain, unspecified type - code to pain by site, such as:
  • abdomen pain (R10.-)
  • back pain (M54.9)
  • breast pain (N64.4)
  • chest pain (R07.1-R07.9)
  • ear pain (H92.0-)
  • eye pain (H57.1)
  • headache (R51.9)
  • joint pain (M25.5-)
  • limb pain (M79.6-)
  • lumbar region pain (M54.5-)
  • pelvic and perineal pain (R10.2)
  • shoulder pain (M25.51-)
  • spine pain (M54.-)
  • throat pain (R07.0)
  • tongue pain (K14.6)
  • tooth pain (K08.8)
  • renal colic (N23)
  • pain disorders exclusively related to psychological factors (F45.41)
  • chest (central) R07.9
    ICD-10-CM Diagnosis Code R07.9

    Chest pain, unspecified

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • ischemic I20.9
• Status (post) - see also Presence (of)
  • anginosus I20.9
• Syndrome - see also Disease
  • X I20.9

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.