I25.8
⚠ Non-billable (Header)Other forms of chronic ischemic heart disease
Diseases of the circulatory system (I00-I99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
inherited from I25Rules from parent category I25: Chronic ischemic heart disease
- • non-ischemic myocardial injury (I5A)
📋 Code Instructions
from I25- • code to identify:
- • chronic total occlusion of coronary artery (I25.82)
- • 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)
Child Codes (6)
I25.81Atherosclerosis of other coronary vessels without angina pectorisI25.82Chronic total occlusion of coronary arteryI25.83Coronary atherosclerosis due to lipid rich plaqueI25.84Coronary atherosclerosis due to calcified coronary lesionI25.85Chronic coronary microvascular dysfunctionI25.89Other forms of chronic ischemic heart disease
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Add I25.8 to the Excludes Checker to validate against your full code list.
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CodeI25.8
BillableNo — Header code
ParentI25
CategoryDiseases of the circulatory system (I00-I99)
Excludes10 rule(s)
Excludes21 note(s)
Child codes6
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)