I63.231
BillableCerebral infarction due to unspecified occlusion or stenosis of right carotid arteries
HCC Category Mapping
V28HCC 249 — Ischemic or Unspecified Stroke
0.289V24HCC 100 — Ischemic or Unspecified Stroke
0.262ESRDHCC 100 — Ischemic or Unspecified Stroke
0.000What This Code Means
A stroke caused by a blockage or narrowing of the right carotid artery in the neck, a major vessel supplying the brain.
Coding Tips
- •Carotid artery strokes are common; verify right-sided involvement is documented
- •Distinguish from left, bilateral, or unspecified carotid involvement based on imaging and clinical assessment
Clinical Significance
Cerebral infarction due to unspecified occlusion or stenosis of the right carotid artery captures anterior circulation ischemic strokes where the right carotid artery is the confirmed site but the specific mechanism is not documented. Carotid artery disease is the most common cause of anterior circulation strokes, and right-sided involvement typically causes left-sided motor and sensory deficits along with hemispatial neglect.
Documentation Requirements
- ✓Imaging confirmation of acute cerebral infarction in right carotid territory
- ✓Vascular imaging confirming right carotid artery occlusion or stenosis
- ✓Documentation specifying right-sided laterality
- ✓Neurological examination documenting left-sided deficits
- ✓Stroke mechanism evaluation
- ✓Treatment plan including carotid intervention consideration
Commonly Confused Codes
I63.031 — Thrombosis of right carotid artery; mechanism specified as thrombosisI63.131 — Embolism of right carotid artery; mechanism specified as embolismI63.232 — Unspecified occlusion of left carotid artery; opposite lateralityI63.239 — Unspecified occlusion of unspecified carotid artery; laterality unknownI65.21 — Occlusion of right carotid without cerebral infarction; no stroke
Code Hierarchy
└I63Cerebral infarction└I63.2Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteries└I63.23Cerebral infarction due to unspecified occlusion or stenosis of carotid arteries└I63.231Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteries
└I63.231Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteries