ICD Code I70.90

ICD code I70.90 is unspecified atherosclerosis, meaning there is a hardening or narrowing of the arteries due to plaque buildup, but the specific location or type is not identified in the documentation.

1. Presence of atherosclerotic changes identified through imaging, histology, or clinical evaluation

2. Evidence of arterial wall thickening or plaque formation without specification of the affected vascular territory

3. Absence of symptoms or findings that localize atherosclerosis to a specific artery or vascular bed (e.g., coronary, carotid, peripheral)

4. No documentation of complications such as ulceration, thrombosis, or gangrene

5. Patient may present with general risk factors for atherosclerosis (e.g., hypertension, hyperlipidemia, diabetes) but without clear clinical manifestation in a specific site

6. Provider documentation explicitly states “unspecified atherosclerosis” or does not provide further detail on the location

Relevant CPT codes that may be used to treat ICD code I70.90 include:

- 93922: Limited bilateral noninvasive physiologic studies of upper or lower extremity arteries

- 93923: Complete bilateral noninvasive physiologic studies of upper or lower extremity arteries

- 93925: Duplex scan of lower extremity arteries or bypass grafts; complete bilateral study

- 35301: Thromboendarterectomy, with or without patch graft; carotid, vertebral, subclavian artery

- 37225: Revascularization, endovascular, open or percutaneous, femoral, popliteal artery, with atherectomy, includes angioplasty within the same vessel

- 37227: Revascularization, endovascular, open or percutaneous, femoral, popliteal artery, with stent placement and angioplasty within the same vessel

- 92920: Percutaneous transluminal coronary angioplasty; single major coronary artery or branch

- 92928: Percutaneous transcatheter placement of intracoronary stent(s), with coronary angioplasty when performed; single major coronary artery or branch

These CPT codes are commonly associated with the treatment of ICD code I70.90.

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