2025
ICD-10-CM
Diagnosis
Code

I22 Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction

  • Non-billable
  • 2016–2025

I22 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction.

Includes

  • Acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site

  • Cardiac infarction

  • Coronary (artery) embolism

  • Coronary (artery) occlusion

  • Coronary (artery) rupture

  • Coronary (artery) thrombosis

  • Infarction of heart, myocardium, or ventricle

  • Recurrent myocardial infarction

  • Reinfarction of myocardium

  • Rupture of heart, myocardium, or ventricle

  • Subsequent type 1 myocardial infarction

Use additional code

  • Code, if applicable, to identify:

    • Exposure to environmental tobacco smoke (Z77.22)

    • History of tobacco dependence (Z87.891)

    • Occupational exposure to environmental tobacco smoke (Z57.31)

    • Status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)

    • Tobacco dependence (F17.-)

    • Tobacco use (Z72.0)

Type 1 excludes

  • Subsequent myocardial infarction, type 2 (I21.A1)

  • Subsequent myocardial infarction of other type (type 3) (type 4) (type 5) (I21.A9)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    Code changed

    • Includes

        • acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site
        • cardiac infarction
        • coronary (artery) embolism
        • coronary (artery) occlusion
        • coronary (artery) rupture
        • coronary (artery) thrombosis
        • infarction of heart, myocardium, or ventricle
        • recurrent myocardial infarction
        • reinfarction of myocardium
        • rupture of heart, myocardium, or ventricle
        • acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site
        • cardiac infarction
        • coronary (artery) embolism
        • coronary (artery) occlusion
        • coronary (artery) rupture
        • coronary (artery) thrombosis
        • infarction of heart, myocardium, or ventricle
        • recurrent myocardial infarction
        • reinfarction of myocardium
        • rupture of heart, myocardium, or ventricle
        • subsequent type 1 myocardial infarction

    • Type 1 excludes

        • subsequent myocardial infarction, type 2 (I21.A1)
        • subsequent myocardial infarction of other type (type 3) (type 4) (type 5) (I21.A9)

  9. 2017

    Code changed

    • Use additional code

        • code, if applicable, to identify:
        • exposure to environmental tobacco smoke (Z77.22)
        • history of tobacco use (Z87.891)
        • occupational exposure to environmental tobacco smoke (Z57.31)
        • status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
        • tobacco dependence (F17.-)
        • tobacco use (Z72.0)
        • code, if applicable, to identify:
        • exposure to environmental tobacco smoke (Z77.22)
        • history of tobacco dependence (Z87.891)
        • occupational exposure to environmental tobacco smoke (Z57.31)
        • status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
        • tobacco dependence (F17.-)
        • tobacco use (Z72.0)

  10. 2016

    New code