Cellulitis of left axilla

This code signifies an acute, spreading bacterial infection of the dermis and subcutaneous tissue specifically located in the left armpit. It presents with localized erythema, warmth, swelling, and tenderness, often accompanied by fever and malaise. The infection typically lacks distinct borders and can rapidly progress if untreated.

Apply this code when documentation clearly indicates cellulitis affecting the left axillary region. This includes cases of primary bacterial infection, or secondary infection following trauma, insect bites, or surgical procedures in the area. Supporting documentation should detail the location, signs, and symptoms consistent with cellulitis.

• Ensure the documentation specifies "left" axilla; otherwise, an unspecified or right-sided code would be more appropriate.
• Distinguish from abscess (L02.212) or lymphadenitis (I88.0) which may present similarly but involve different tissue layers or structures.
• Code any underlying cause, such as a wound or insect bite, as an additional diagnosis if documented.