ICD code I77.9 is used to identify an unspecified disorder of arteries and arterioles for accurate diagnosis and medical recordkeeping.
ICD code I77.9 is a diagnosis used when a patient has a disorder affecting the arteries or arterioles, but the specific type or cause of the disorder is not specified in the medical record.
1. Presence of symptoms or clinical findings suggestive of arterial or arteriolar disease without a more specific diagnosis
2. Evidence of abnormal arterial or arteriolar function or structure identified through imaging, laboratory, or physical examination
3. Exclusion of other specified arterial or arteriolar disorders after appropriate diagnostic workup
4. Documentation of vascular symptoms such as pain, pallor, pulselessness, or tissue changes not attributable to a defined vascular condition
5. Persistent or recurrent vascular abnormalities where the underlying cause remains undetermined despite evaluation
Relevant CPT codes that may be used to treat ICD code I77.9 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
- 93926: Duplex scan of lower extremity arteries or bypass grafts; unilateral or limited study
- 37220: Revascularization, endovascular, open or percutaneous, femoral, popliteal artery, initial vessel
- 37221: Revascularization, endovascular, open or percutaneous, femoral, popliteal artery, with stent
- 37224: Revascularization, endovascular, open or percutaneous, tibial/peroneal artery, initial vessel
- 37225: Revascularization, endovascular, open or percutaneous, tibial/peroneal artery, with atherectomy
- 35475: Transluminal balloon angioplasty, percutaneous; brachiocephalic trunk or branches
- 36215: Selective catheter placement, arterial system; each first order thoracic or brachiocephalic branch
- 75710: Angiography, extremity, unilateral, radiological supervision and interpretation
CPT code selection should be based on the specific clinical scenario and procedures performed for I77.9.
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