Abscess of left external ear

This code signifies an infection characterized by a localized collection of pus within the tissues of the left outer ear. It typically presents as a painful, swollen, and inflamed area on the auricle or external auditory canal.

Apply this code when documentation clearly indicates an abscess affecting the left external ear. This diagnosis is supported by findings such as localized tenderness, erythema, swelling, and possibly fluctuance on the left auricle or within the left external auditory canal.

• Ensure laterality is explicitly documented as "left" to support this specific code.
• Distinguish from cellulitis (L03.211, L03.212) or other inflammatory conditions of the external ear without abscess formation.
• Code any underlying cause, such as otitis externa, if documented and clinically relevant, as a secondary diagnosis.