ICD-10 Code L02.432 – Carbuncle of left axilla (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.432 – Carbuncle of left axilla
What it is
This code identifies a carbuncle, which is a deeper skin infection made up of interconnected boils, located in the left armpit. Use it when documentation clearly states the left axilla as the site.
Clinical signs
Typical findings include a painful, swollen, red, and tender mass with possible drainage or multiple openings. Clinical features vary; refer to documentation.
When to use this code
Use L02.432 when the record specifically documents a carbuncle in the left axilla, such as an abscessed, draining, or infected lesion in that location. Code it from provider documentation, not from presumed laterality or a nonspecific “boil” alone. If the site is described differently, check documentation.
Do not use for
Do not use this code for a furuncle, simple abscess, or a carbuncle in another body site. If the laterality or diagnosis is unclear, check documentation.
Coding tip
Always confirm both the diagnosis term and the left-sided axillary location before assigning L02.432.