ICD-10 Code L03.031 – Cellulitis of right toe (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.031 – Cellulitis of right toe
What it is
L03.031 identifies cellulitis limited to the right toe. It describes an acute bacterial infection of the skin and soft tissues in that specific location.
Clinical signs
Typical findings include localized redness, warmth, swelling, and tenderness of the right toe. Clinical features vary; refer to documentation for any drainage, spreading erythema, or associated skin breakdown.
When to use this code
Use this code when the provider documents cellulitis affecting the right toe only. It also fits when the note clearly identifies the right toe as the infected site, even if the exact cause is not specified. If documentation is unclear about laterality or location, check documentation before coding.
Do not use for
Do not use L03.031 for cellulitis of another toe, the foot, or the leg. Do not use it when the record describes a noninfectious inflammatory condition or a different skin diagnosis.
Coding tip
Confirm both the anatomic site and laterality in the provider note before assigning L03.031.