ICD-10 Code L02.52 – Furuncle hand (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.52 – Furuncle hand
What it is
L02.52 identifies a furuncle, or boil, on the hand. It is a localized bacterial infection of a hair follicle that forms a painful, pus-filled nodule.
Clinical signs
Typical findings include a tender, red, swollen lump that may drain pus. Check documentation for fluctuance, surrounding cellulitis, or mention of a single lesion on the hand.
When to use this code
Use L02.52 when the provider documents a furuncle specifically located on the hand. It fits encounters for evaluation, drainage, or follow-up of that localized infection. If the record only says “abscess” or gives a different site, you need the documented location before coding.
Do not use for
Do not use this code for carbuncles, diffuse skin infections, or abscesses at another body site. If the note does not clearly identify a furuncle on the hand, check documentation.
Coding tip
Confirm both the lesion type and the exact hand location before assigning L02.52.