Blister of hip, thigh, leg, and ankle, without mention of infection

This code signifies the presence of a fluid-filled lesion (blister) located on the hip, thigh, leg, or ankle. It specifically applies when there is no documented evidence or mention of an associated infection.

This code is appropriate for documenting non-infected blisters resulting from various etiologies such as friction, burns (first or second degree without deeper tissue involvement), or contact dermatitis affecting the specified lower extremity regions. Documentation should clearly indicate the presence of a blister and explicitly state the absence of infection or provide no mention of infection.

• Ensure the documentation specifies the anatomical location (hip, thigh, leg, or ankle) to differentiate from blisters on other body sites.
• Do not use this code if the blister is explicitly documented as infected; instead, select a more specific code for infected skin lesions.
• Consider an external cause code (E-code) if the blister resulted from an identifiable external event, such as a burn or friction.