ICD-10-CM Billable Code

I70.44

Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration

Clinical Classification Guidelines

Use Additional Code

  • code to identify severity of ulcer (L97.-)

Medical Intelligence & Overview

Atherosclerosis of autologous vein bypass grafts of the left leg with ulceration is a condition where fatty deposits build up inside the blood vessels used to bypass blocked arteries in the leg. This leads to narrowing or blockage of the grafts, causing poor blood flow. The reduced circulation can result in tissue damage, manifesting as ulcers on the leg. This condition is a form of critical limb ischemia, a severe form of peripheral arterial disease that threatens limb survival if not properly managed.

Causes & Symptoms

Clinical Causes: Progressive build-up of fatty plaques within the blood vessel walls of bypass grafts Chronic inflammation within the blood vessels High levels of cholesterol and other lipids in the blood Smoking, which damages blood vessels and promotes atherosclerosis Diabetes mellitus, increasing the risk of arterial disease Hypertension (high blood pressure) History of peripheral vascular disease or previous limb ischemia Age, with higher risk as age increases Family history of cardiovascular disease

Key Symptoms: Development of ulcers or open sores on the affected leg, often near the toes or other pressure points Persistent pain or discomfort in the leg, especially during activity or at rest Coldness or numbness in the affected limb Weak or absent pulses in the foot or leg Discoloration of the skin, which may turn pale, bluish, or darkened Swelling in the leg or ankle Skin thinning or changes in hair and nail growth on the affected limb

Diagnostic & Treatment

Diagnosis Path: Physical assessment focusing on pulses, skin condition, and presence of ulcers Ankle-brachial index (ABI) measurement to assess blood flow Doppler ultrasound to evaluate blood flow in the grafts Angiography, such as CT or catheter-based, to visualize the blood vessels and identify blockages Blood tests to assess cholesterol levels, blood sugar, and other risk factors

Treatment Protocols: Medicinal therapies to control risk factors: cholesterol-lowering medications, antiplatelet agents, blood pressure management, and glycemic control Wound care for leg ulcers, including cleaning, dressings, and infection prevention Minimally invasive procedures like angioplasty or stent placement to restore blood flow Surgical interventions, such as graft revision or bypass surgery, if indicated Lifestyle modifications: quitting smoking, adopting a healthy diet, and engaging in appropriate physical activity Regular follow-up and monitoring to track disease progression and prevent complications

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is I70.44 a billable ICD-10 code?
Yes, I70.44 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report I70.44?
Clinical documentation must specify the nature of Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration and any associated comorbidities for accurate reporting.

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