ICD-10 Code L02.12 – Furuncle of neck (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.12 – Furuncle of neck
What it is
This code identifies a furuncle, or boil, located on the neck. It refers to 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 with central pus or drainage. Clinical features vary; refer to documentation if the lesion is not clearly described as a furuncle.
When to use this code
Use L02.12 when documentation specifically states a furuncle of the neck. It is appropriate when the provider describes a boil, abscessed follicle, or localized staphylococcal skin infection in that site. If the location is unclear, check documentation.
Do not use for
Do not use this code for cellulitis, carbuncle, or abscesses at other body sites. If the record does not specify a furuncle of the neck, check documentation before assigning L02.12.
Coding tip
Code the exact anatomic site documented; neck location is essential for L02.12.