I25.42
BillableCoronary artery dissection
HCC Category Mapping
RxHCCHCC 188 — Coronary Artery Disease and Angina
0.000What This Code Means
A tear in the inner lining of a coronary artery that can restrict blood flow to the heart.
Coding Tips
- •Document the specific coronary artery involved and whether it is spontaneous or iatrogenic (procedure-related)
- •Note any associated complications such as thrombosis or hemopericardium
Clinical Significance
Coronary artery dissection is a tear in the coronary artery wall that can restrict blood flow and cause acute coronary syndrome. It can be spontaneous (spontaneous coronary artery dissection, more common in young women) or iatrogenic (from cardiac catheterization or percutaneous coronary intervention). Spontaneous coronary artery dissection is increasingly recognized as an important cause of acute myocardial infarction in younger patients without traditional risk factors.
Documentation Requirements
- ✓Documentation of coronary artery dissection
- ✓Which coronary artery is involved
- ✓Whether the dissection is spontaneous or iatrogenic (procedure-related)
- ✓Imaging confirmation (angiography, intravascular ultrasound, optical coherence tomography)
- ✓Associated complications (myocardial infarction, ischemia)
- ✓Treatment approach (conservative management, percutaneous coronary intervention, coronary artery bypass graft)
Commonly Confused Codes
I25.41 — Coronary artery aneurysm: dilation of the artery, not a tearI21.A9 — Other myocardial infarction type: if the dissection causes a myocardial infarction, consider this codeI71.0x — Dissection of aorta: dissection of the aorta, not the coronary arteryI77.79 — Dissection of other specified artery: for non-coronary arterial dissections
Code Hierarchy
└I25Chronic ischemic heart disease└I25.4Coronary artery aneurysm and dissection└I25.42Coronary artery dissection
└I25.42Coronary artery dissection