AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2018 Issue 2; Ask the Editor
Carotid Artery Stenosis and Transient Ischemic Attack
A 73-year-old female presents due to intermittent episodes of balance and vision changes with right hemiparesis. She is diagnosed with transient ischemic attack (TIA) due to bilateral carotid artery stenosis, with left side symptomatic stenosis. Left carotid endarterectomy with bovine patch angioplasty was performed. There is an Excludes 1 note under category I65-, Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction, that prohibits the reporting of a code from this category with the TIA code. The stroke team at our facility is concerned that if the TIA is not coded separately, their workup is not being captured. Would it be appropriate to assign codes for both the TIA and bilateral carotid artery stenosis? ...
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Article Overview
This article addresses a common diagnosis-coding question involving transient ischemic attack, carotid artery stenosis, and related ICD-10-CM guidance. It is relevant for coders, CDI professionals, and clinical teams working with stroke evaluation and vascular procedures who need to understand the scope of the coding issue and the related category-level guidance discussed in the article.
Why This Topic Matters
Accurate diagnosis coding affects whether the patient’s neurologic event and vascular disease are represented appropriately in the record and may influence how the workup and procedure context are captured.
What You Will Learn
- How the article frames the relationship between transient ischemic attack and carotid artery stenosis in coding terms.
- What category-level ICD-10-CM guidance is discussed in connection with these diagnoses.
- Why the scenario is relevant to stroke-team documentation and vascular procedure coding.
- How the article approaches the question of whether both diagnoses may be reported.
Who Should Read This
- Medical coders
- Coding educators
- Clinical documentation integrity specialists
- Stroke program staff
- Vascular surgery coding teams
Codes Discussed
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