In M1330, why should arterial lesions not be included?

In the context of M1330, arterial lesions should not be included because they are not related to stasis injuries. Stasis injuries or ulcers typically arise from venous insufficiency, where blood pools in the veins, leading to inadequate oxygen supply and subsequent tissue damage. Including arterial lesions in this context would misrepresent the underlying causes and implications of the ulcers being assessed, as arterial ulcers stem from inadequate blood flow due to arterial diseases, which is a substantially different etiology. Therefore, focusing on stasis injuries allows for a more accurate assessment of venous wound healing and management, highlighting the importance of differentiating the types of leg ulcers based on their underlying causes.