2025 ICD-10-CM Diagnosis Code I25.82

Chronic total occlusion of coronary artery

• I25.82 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2025 edition of ICD-10-CM I25.82 became effective on October 1, 2024.
• This is the American ICD-10-CM version of I25.82 – other international versions of ICD-10 I25.82 may differ.

Applicable To

• Complete occlusion of coronary artery
• Total occlusion of coronary artery

Code First

• coronary atherosclerosis (I25.1-, I25.7-, I25.81-)

Type 1 Excludes

• acute coronary occlusion with myocardial infarction (I21.0-I21.B, I22.-)
• acute coronary occlusion without myocardial infarction (I24.0)

The following code(s) above I25.82 contain annotation back-references

 that may be applicable to I25.82:

• I00-I99  Diseases of the circulatory system
• I20-I25  Ischemic heart diseases
• I25  Chronic ischemic heart disease

Clinical Information

• Prolonged complete obstruction of the coronary artery.

ICD-10-CM I25.82 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 302 Atherosclerosis with mcc
• 303 Atherosclerosis without mcc

Convert I25.82 to ICD-9-CMCode History

• 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
• 2024 (effective 10/1/2023): No change
• 2025 (effective 10/1/2024): No change

Code annotations containing back-references to I25.82:

• Use Additional: I25

Diagnosis Index entries containing back-references to I25.82:

• Occlusion, occluded
  • arteryI70.9 – see also Atherosclerosis, artery
    • complete
      • coronary I25.82
    • coronary (acute) (thrombotic) (without myocardial infarction) I24.0
      • chronic total I25.82
      • complete I25.82
      • total I25.82 (chronic)
    • total (chronic)
      • coronary I25.82
  • coronary (artery) (vein) (thrombotic) – see also Infarct, myocardium
    • chronic total I25.82
    • total I25.82 (chronic)