ICD-10 Code L03.111 – Cellulitis of right axilla (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.111 – Cellulitis of right axilla
What it is
L03.111 identifies cellulitis affecting the right axilla, the armpit area. It refers to an acute bacterial skin and soft tissue infection with localized inflammation in that specific site.
Clinical signs
Typical findings include redness, warmth, swelling, tenderness, and sometimes pain in the right axilla. Clinical features vary; refer to documentation when the note does not clearly confirm infection.
When to use this code
Use this code when the provider documents cellulitis specifically in the right axilla. It is appropriate when the infection is limited to that anatomic site and no more specific diagnosis is recorded.
If the record only says “cellulitis” without laterality or location, check documentation before assigning L03.111. Do not infer the right side from context unless the note clearly supports it.
Do not use for
Do not use this code for abscess, furuncle, or other non-cellulitis skin infections. Also avoid it when the site is left axilla, bilateral, or unspecified; check documentation.
Coding tip
Always verify both the diagnosis and laterality in the provider note before coding L03.111.