I25.9
✓ BillableChronic ischemic heart disease, unspecified
Diseases of the circulatory system (I00-I99)
Also Known As
Ischemic heart disease (chronic) NOS
⚠️ 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)
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CodeI25.9
BillableYes
ParentI25
CategoryDiseases of the circulatory system (I00-I99)
Excludes10 rule(s)
Excludes21 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)