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2025 ICD-10-CM code I70.26

Atherosclerosis of native arteries of extremities with gangrene. This condition involves the buildup of plaque in the arteries of the extremities, leading to tissue death.

Use additional code to identify the severity of any ulcer (L97.-, L98.49-), if applicable. Use a 6th character to identify laterality and/or location: (1) right leg, (2) left leg, (3) bilateral legs, (8) other extremity, (9) unspecified extremity.

Medical necessity is established by the presence of gangrene, a serious condition that requires intervention to prevent further tissue damage and potential amputation. Treatment may involve debridement, revascularization procedures, or amputation, depending on the severity and extent of the gangrene.

Diagnosis and management of atherosclerosis, including assessment of blood flow, wound care, pain management, and potential surgical intervention.

IMPORTANT:Use additional code to identify the severity of any ulcer (L97.-, L98.49-), if applicable. Use additional code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)

In simple words: Hardening and narrowing of the arteries in the limbs, causing tissue death due to lack of blood flow.

Atherosclerosis of native arteries of extremities with gangrene. Includes: any condition classifiable to I70.21-, I70.22-, I70.23-, I70.24-, and I70.25- chronic limb-threatening ischemia of native arteries of extremities with gangrene critical limb ischemia of native arteries of extremities with gangrene.

Example 1: A patient with a history of diabetes and peripheral artery disease presents with black, necrotic tissue on their right great toe., A patient with long-standing atherosclerosis in their legs develops gangrene in their left foot following a minor injury., A patient undergoing treatment for critical limb ischemia develops dry gangrene in several toes.

Documentation should include the presence of gangrene, location and extent of tissue death, presence of any ulcers, and associated conditions such as diabetes or peripheral artery disease.The severity of any associated ulcer should be documented using L97.- or L98.49-.

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