ICD-10 Code L02.412 – Cutaneous abscess of left axilla (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.412 – Cutaneous abscess of left axilla
What it is
L02.412 identifies a localized skin abscess in the left armpit. It means there is a pocket of pus in the cutaneous tissue of that area.
Clinical signs
Typical findings include a painful, swollen, red, and tender lump in the left axilla. Fluctuance or drainage may be present; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider documents a cutaneous abscess specifically in the left axilla. It is appropriate for a localized skin abscess, including a furuncle-like lesion, when the left side is clearly stated. If laterality is unclear, check documentation.
Do not use for
Do not use this code for abscesses in other body sites or for unspecified axillary abscesses. Do not use it when the record describes cellulitis only, or when documentation does not confirm an abscess.
Coding tip
Always capture laterality from the note, because the axilla code changes by side.